think后加什么介词

think后加介词of；
think of：
考虑; 设想,想象; [常用于否定句,与could,should,would连用]有、、、想法[念头];
想起,记得; 想出(主意),提出(建议); [和副词连用]认为(某事或某人)是、、、;
think：
v、认为;以为;想;思考;思索;思想;琢磨
n、想;想法

What in the world did they think they were doing?

他们到底认为自己在做什么？

I think we should go back to first principles、

我认为我们应该回到基本原则上。

I always think of you as one of the family、

我一直把你当成自家人。

He'd like more time to think things over、

他希望有更多的时间把情况考虑周详。

Their family has always been well thought of around here、

他们家在这一带一直颇受敬重。