他也是一个安静的人，除非在谈论太空话题的时候。

He also was a quiet man, except when he talked about space.

youdao

这样保证了除非在真正必要的时候大型数据结构不会构建。

This ensures that large data structures are not built until they are truly necessary.

youdao

这样保证了除非在真正必要的时候大型数据结构不会构建。

This ensures that large data structures are not built until they are truly necessary.

youdao