别傻笑了！这可是件很严重的事情。

Stop grinning! This is a serious matter.

youdao

孩子们，别傻笑了，这是严厉的事情。

Stop giggling, children; this is a serious matter.

youdao

今天我想让你明白，那是个错误的信息。烟花爆竹可不是小事，不能拿来开玩笑。因此，请别傻笑了，认真听好。

I will let you know that is false information. Fireworks are no small matter, and no laughing matter either. So wipe that smirk off your face and listen up.

youdao