The past is always tense, the future perfect.

The coal industry must unswervingly follow the path of safe, efficient, clean, and low-carbon development.

我们不是从祖先那里继承了土地，而是从子孙那里借用了土地。

一个人必须尽力而为，然后平静地接受结果。

A long habit of not thinking a thing wrong gives it a superficial appearance of being right.

我不会成为那个必须说最后一句话的女孩。但我会成为那个必须笑到最后的女孩。