If you blow off discussion section, you're grade will suffer.

如果你们不在课堂讨论好好表现，你们的分数可能会遭殃。

耶鲁公开课 - 死亡课程节选

people here just really, just blow off steam and they just go crazy.

他们就会好好地释放一下，狂欢一下。

来普林斯顿吧 - SpeakingMax英语口语达人

So, it's easy. It's easy to blow it off.

这样很糟糕，效果不好。

麻省理工公开课 - 固态化学导论课程节选