Do something fun and laugh it up.

做一些有意思的事情，尽情的开怀大笑。

youdao

Do something fun and laugh your ass off.

做一些好玩又可笑的事情。

youdao

or “Do you have any time today to do something fun together?

或“今天有空一起做点什么有趣的事么？”

youdao

We did make errors, but we had a lot of fun doing it. Being the first ones to do something that gigantic was very exciting."

VOA: standard.2009.08.14

Now what I'd like to do is something that you'll probably cut out because of copyright issues but it's a kind of fun warm-up anyway, so we're going to go ahead and do this and then we'll actually start.

首先我想做个小游戏,不过这个片段可能由于版权问题而被切掉,但是这个热场游戏很有趣,那么,我们马上开始,游戏之后再正式上课

耶鲁公开课 - 聆听音乐课程节选

Find something that's fun and you'll do it more frequently.

找点有趣的，你会做得更频繁。

激情生活 - SpeakingMax英语口语达人

How about taking some time out of our busy schedules to bond with our colleagues, get to know them a little better, do something fun together and enjoy life?

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Do something fun that will make you laugh.

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Go do something fun (movie?).

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