He gave it to Dupin. My friend examined the check carefully and put it in his pocket.

VOA: special.2009.12.26

So I claim it is, let's just check carefully.

我认为是的,仔细验证一下

耶鲁公开课 - 博弈论课程节选

It's saying, "Remember, check it out, you want to do this and think about it carefully."

它是指，“记住，一定要好好确认，你需要把它做好，仔细考虑一下。”

Make sure 课堂 - SpeakingMax英语口语达人

We can work it out at home and check it carefully, but this isn't that incorrect.

大家回家后可以仔细画一下,但并非意味着黑板上的不对

耶鲁公开课 - 博弈论课程节选