虽然实现是允许省略拷贝，一个可行的和可访问的拷贝构造函数(或移动构造函数，如果我们谈论的是一个移动)应该是仍然存在的。

Even though an implementation is allowed to elide the copy, a viable and accessible copy constructor (or move constructor, if we're talking about a move) should still be present.

youdao

虽然实现是允许省略拷贝，一个可行的和可访问的拷贝构造函数(或移动构造函数，如果我们谈论的是一个移动)应该是仍然存在的。

Even though an implementation is allowed to elide the copy, a viable and accessible copy constructor (or move constructor, if we're talking about a move) should still be present.

youdao