And,if you wish someone good night, you might say, "sleep tight -- don't let the bed bugs bite."

VOA: special.2009.06.28

So if I call, let's , let's set up s to be, I don't know, some big long list.

那让我们来调用一次吧，让我们建立一个，怎么说。

麻省理工公开课 - 计算机科学及编程导论课程节选

Let's look at a few examples of how we can use the "I don't know" pattern.

下面我们来看几个例子，看看该如何使用这个句型。

I don't know 课堂 - SpeakingMax英语口语达人

Don't let them down, don't let me down.

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"People who know the game inside out tell you 'don't let your degree go, don't let your studies go, ' " he said.

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Stay off it, let it heal, don't push it, and it won't be an issue.

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