2. Boost Unordered Translation (zh_Hans)
3. Chinese (Simplified Han script)
4. Zen

:1112 :1112
	English If there is no such element, it is added to the container as: ```c++
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 如果不存在这样的元素，则将其添加到容器中，形式为： ```c++ 34/680 · 68 Needs editing
:1185 :1185
	English Inserts `obj` in the table if and only if there is no element in the table with an equivalent key, and then invokes `f1` with a non-const reference to the newly created element. Otherwise, invokes `f2` with a reference to the equivalent element; such reference is const iff a `*_cvisit` overload is used.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 当且仅当容器中不存在等价键的元素时，插入obj，随后以新创建元素的非常量引用调用f1； 否则，以等价元素的引用调用f2；若使用*_cvisit重载版本，则该引用为常量引用。 86/3040 · 304 Needs editing
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	English Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + The interface is exposition only, as C++ does not allow to declare parameters `f1` and `f2` after a variadic parameter pack.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 可由参数 `args` 构造。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 该接口仅为说明性设计，因为 C++ 不允许在可变参数包之后声明参数 `f1` 和 `f2`。 170/3580 · 358 Needs editing
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	English Returns:;; A `node_type` object holding the extracted element, or empty if no element was extracted. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. Notes:;; The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：一个持有被提取元素的 `node_type` 对象；如果未提取到任何元素，则返回空。 抛出：仅当 `hasher` 或 `key_equal` 抛出异常时才会抛出。 注意：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时才参与重载决议。库假定 `Hash` 可同时用 `K` 和 `Key` 调用，并且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class> 279/5460 · 546 Needs editing
:1106 :1106
	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; These overloads only participate in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `value_type` 可从 `k` 原位构造。 返回值：;; 若成功插入元素则返回 `true`。 并发特性：;; 会阻塞当前对象 `*this` 的扩容重哈希操作。 注意：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 为合法成员别名时，该重载版本参与重载决议。库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免了实例化 `Key` 类型对象的开销。 247/5660 · 566 Needs editing
:1042 :1042
	English Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. + + In this implementation, this overload doesn't call either function object's methods so it is no throw, but this might not be true in other implementations. Notes:;; This method was implemented because returning an iterator to the next element from erase was expensive, but the container has been redesigned so that is no longer the case. So this method is now deprecated.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 抛出：仅当 `hasher` 或 `key_equal` 抛出异常时才会抛出。 在此实现中，此重载不会调用任何函数对象的方法，因此不会抛出异常，但这在其他实现中可能并不成立。 注意：引入此方法是因为从 `erase` 返回指向下一个元素的迭代器成本较高，但容器已经过重新设计，不再存在这种情况。因此，此方法现已弃用。 164/4540 · 454 Needs editing
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	English Returns:;; If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; Can invalidate iterators, but only if the insert causes the load to be greater than the maximum load. + + The `template<class K, class M>` only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：如果发生了插入，则迭代器指向新插入的元素；否则，指向具有等价键的元素。 抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。 注意：可能使迭代器失效，但仅当插入导致负载大于最大负载时才会发生。 `template<class k,="" class="" m="">` 仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class> 315/7310 · 731 Needs editing
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	English Returns:;; If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated. + + The `template<class K, class M>` only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：如果发生了插入，则迭代器指向新插入的元素；否则，指向具有等价键的元素。 抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。 注意：标准关于 `hint` 的含义表述相当模糊。但唯一实际的使用方式，也是 Boost.Unordered 支持的唯一方式，是将其指向一个具有相同键的已存在元素。 可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。 指向元素的指针和引用永远不会失效。 `template<class k,="" class="" m="">` 仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class> 422/10180 · 1018 Needs editing
:1078 :1078
	English Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. + + In this implementation, this overload doesn't call either function object's methods so it is no throw, but this might not be true in other implementations. Notes:;; This method was implemented because returning an iterator to the next element from erase was expensive, but the container has been redesigned so that is no longer the case. So this method is now deprecated.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 抛出：仅当 `hasher` 或 `key_equal` 抛出异常时才会抛出异常。 + + 在此实现中，此重载不会调用这两个函数对象的任何方法，因此不会抛出异常，但在其他实现中可能并非如此。 说明：此方法最初实现的原因是，从 `erase` 返回指向下一个元素的迭代器开销较大，但容器已经过重新设计，该问题已不复存在。因此，此方法现已弃用。 174/4540 · 454 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 满足可复制插入要求。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 118/2810 · 281 Needs editing
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	English Returns:;; An opaque object implicitly convertible to the `iterator` or `const_iterator` immediately following `position` prior to the erasure. Throws:;; Nothing. Notes:;; The opaque object returned must only be discarded or immediately converted to `iterator` or `const_iterator`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：一个不透明对象，可隐式转换为 `position` 在被擦除之前紧后位置的 `iterator` 或 `const_iterator`。 抛出：不抛出任何异常。 注意：返回的不透明对象只能被丢弃或立即转换为 `iterator` 或 `const_iterator`。 141/2810 · 281 Needs editing
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	English Returns:;; A `node_type` owning the element. Notes:;; A node extracted using this method can be inserted into a compatible `unordered_multimap`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：一个拥有该元素的 `node_type`。 注意：通过此方法提取的节点可以插入到兼容的 `unordered_multimap` 中。 72/1440 · 144 Needs editing
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	English Throws:;; Doesn't throw an exception unless it is thrown by the copy constructor or copy assignment operator of `key_equal` or `hasher`. Notes:;; The exception specifications aren't quite the same as the C++11 standard, as the equality predicate and hash function are swapped using their copy constructors.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 抛出：除非 `key_equal` 或 `hasher` 的拷贝构造函数或拷贝赋值运算符抛出异常，否则不抛出任何异常。 注意：异常规范与 C++11 标准不完全相同，因为相等谓词和哈希函数是使用其拷贝构造函数进行交换的。 112/3060 · 306 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `value_type` 满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]。 返回值：;; 执行插入操作则返回 `true`。 并发特性：;; 对 `*this` 执行重哈希时会阻塞。 备注：;; 执行重哈希后，指向元素的指针和引用将会失效。 181/2810 · 281 Needs editing
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	English Returns:;; The number of elements erased. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. Notes:;; The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs and neither `iterator` nor `const_iterator` are implicitly convertible from `K`. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：被擦除的元素数量。 抛出：仅当 `hasher` 或 `key_equal` 抛出异常时才会抛出。 注意：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，且 `iterator` 和 `const_iterator` 都不能从 `K` 隐式转换时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class> 290/5670 · 567 Needs editing
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	English Returns:;; A `node_type` owning the element if found, otherwise an empty `node_type`. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. Notes:;; A node extracted using this method can be inserted into a compatible `unordered_multimap`. + + The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs and neither `iterator` nor `const_iterator` are implicitly convertible from `K`. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：如果找到该元素，则返回一个拥有该元素的 `node_type`；否则返回一个空的 `node_type`。 抛出：仅当 `hasher` 或 `key_equal` 抛出异常时才会抛出。 注意：通过此方法提取的节点可以插入到兼容的 `unordered_multimap` 中。 `template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，且 `iterator` 和 `const_iterator` 都不能从 `K` 隐式转换时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class> 379/7070 · 707 Needs editing
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	English Postconditions:;; `size() == 0` Throws:;; Never throws an exception.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 后置条件：`size() == 0` 抛出：永不抛出异常。 31/680 · 68 Needs editing
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	English Requires:;; `this\->get_allocator() == source.get_allocator()`. Notes:;; Invalidates iterators to the elements transferred. If the resulting size of `*this` is greater than its original maximum load, invalidates all iterators associated to `*this`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：`this-&gt;get_allocator() == source.get_allocator()`。 注意：会使被转移元素的迭代器失效。如果 `*this` 的结果大小大于其原始最大负载，则会使与 `*this` 关联的所有迭代器失效。 126/2480 · 248 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + These overloads only participate in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `value_type` 可由 `k` 进行 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] 构造。 返回值：;; 执行插入操作则返回 `true`。 并发特性：;; 对 `*this` 执行重哈希时会阻塞。 备注：;; 执行重哈希后，指向元素的指针和引用将会失效。 这些重载仅当 `Hash::is_transparent` 与 `Pred::is_transparent` 为合法成员类型别名时才参与重载决议。标准库假定 `Hash` 可同时接受 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这实现了异构查找，避免了实例化 `Key` 类型对象的开销。 358/6440 · 644 Needs editing
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	English Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; The interface is exposition only, as C++ does not allow to declare parameters `f1` and `f2` after a variadic parameter pack.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `value_type` 可由 `args` 构造。 返回值：;; 若执行插入操作则返回 `true`。 并发特性：;; 阻塞对 `*this` 的重哈希操作。 注意：;; 该接口仅作说明用途，因为 C++ 不允许在可变参数包之后声明参数 `f1` 和 `f2`。 138/2800 · 280 Needs editing