严重欺骗 不能用your ass off 因为"my ass off"是固定搭配,没有实际意义,仅仅表示语气的加强 1.my ass off to do a lot or do way too much 强调做了很多 I have been working my ass off! 2.my ass off HAS NO MEANING,just a rhythmic expression. 无实际意义,仅用加强语气 Eminem's MY DAD'S GONE CRAZY:"I'm outta the closet,I've been lyin' my ass off".