To be more accurate, you should be careful to use object member only when necessary.

更确切地说，你应当小心地，只在必要情况下使用对象成员。

youdao

To be more accurate, you should be careful to use object member only when necessary.

更确切地说，你应当小心地，只在必要情况下使用对象成员。

youdao