He thinks he knows all the answers.

他自以为什么都知道。

《牛津词典》

He thinks he can fool me but I've got his number.

他以为他能糊弄我，但我清楚他的真面目。

《牛津词典》

If he thinks he can remain in power by force, he is courting disaster.

如果他认为可以通过武力维持权力的话，那就是在招灾惹祸。

《柯林斯英汉双解大词典》

"Mr.Assange can say whatever he likes about the greater good he thinks he and his source are doing.

VOA: special.2010.07.31

Maybe what we should say is he thinks he remembers the experience of being crowned emperor, but it's a fake memory.

或许我们应该说，他自认为拥有那段经历，但那是虚假的记忆。

耶鲁公开课 - 死亡课程节选

He thinks he is amazing and he has a huge ego.

他总是自我感觉良好，十分自负。

I can't help but 课堂 - SpeakingMax英语口语达人

He thinks he's overcome the battery problem with one developed by Reno's Altair Nano-technologies.

FORBES: Magazine Article

Still, there's one player he thinks he would be unable to do without: Robinson Cano.

WSJ: Cano homers twice in Yankees' win over Blue Jays

Unidentified Child: How come he thinks he gets to decide who lives and who dies?

NPR: YouTube Emerges as Political Tool in Campaigns