itself

唐山开始复苏并重新站起来。

Tangshan started to revive ___itself and get back up on its feet.

一台能够独立思考并自行作决定的电脑这一想法令许多人害怕。

The idea of a computer that can think and make decisions for ___itself terrifies many people.

因此，要克服的问题正是时间本身。

Thus the problem to be overcome is time ___itself.