1、think of 记起,想起；考虑；想像；关心
例句：I can't think of the word for “love” in French.
我想不起法语的“爱”是怎么说的了.
2、think about 考虑
例句：Perhaps we ought to think about this again.
也许我们应该重新考虑一下这件事.
3、think over 仔细考虑；重新考虑
例句：
Kissinger asked Nixon for a week to think over it.
基辛格要求尼克松给他一个星期的时间来考虑.
4、think aloud 边想边说出,自言自语
例句：A friend is one before whom I may think aloud.
朋友就是我可以在其面前自言自语的人.