busting my ass 的意思是让……难堪/ 努力工作
例句：
I wish the directors just would stop, you know, busting my ass because I already have lots of problems.
我真的希望导演别再为难我，我的麻烦事已经够多了。
Every day I work, I bust my ass so my family can live well.
每天我努力工作，为了使我家人的生活好一些。