You can declare tuples with the const qualifier, in which case the get call to access a particular element returns a reference to const.

可以使用const限定符来声明元组，在这种情况下，用于访问特定元素的get调用将返回对const的引用。

youdao

Your normal habit when passing an argument to a function should be to pass by const reference.

用常量引用给一个函数传递参数，是一种好的习惯。

youdao

Your normal habit when passing an argument to a function should be to pass by const reference.

当给函数传递参数时，你要养成的良好习惯是传递常量引用。

youdao

Your normal habit when passing an argument to a function should be to pass by const reference.

当给函数传递参数时，你要养成的良好习惯是传递常量引用。

youdao