I think I did OK in the exam.

我觉得我考得还不错。

《牛津词典》

I think I have said enough.

我想我已经说得够多了。

《柯林斯英汉双解大词典》

Thanks, but I think I can handle it.

谢谢，不过我认为我能处理这件事。

《柯林斯英汉双解大词典》

He said,"I think I have written a lot and sent it off to be printed before I realized strangers might read it."

VOA: special.2010.01.10

I think I have sort of two things to go together that are very simple, that doesn't matter where you live.

我有两点要讲,他们都很简单,无论你住在哪里都可以。

普林斯顿公开课 - 人性课程节选

and so I think I have a really personal story about that of why I think it's really important.

所以我对这方面有着真实的感受，能够解释移民政策的重要性。

美国的移民政策 - SpeakingMax英语口语达人

And as I think I said before, 19, 000 people die each year from this.

NPR: Tracking a New Strain of Drug-Resistant Staph

You know what, I think I shall continue to be the independant female that I have become.

FORBES: Readers Say

"I think I knuckle down and focus a lot better when conditions are tough, " Webb said.

NPR: Karrie Webb Rallies To Win ShopRite LPGA Classic