The horse backed away, its nostrils flaring with fear.

马向后惊退，吓得鼻翼扇动。

My allergies are flaring up.

我的过敏症加重了。

Tempers where flaring up after the game.

比赛过后，满腔怒气爆发了。

I'm good. - your hemorrhoids flaring up or something?

我很好-你的痔疮又爆发什么的了吗？

Many people make the mistake of flaring their elbows out.

许多人使自己的手肘燃烧的错误。