butt in什么意思。

butt in 是插手，插嘴的，挠屁股的意思；

I will not pick my nose or scratch my butt in public.

我不会在公***场合挖鼻孔或者挠屁股。

I had a friend who would always butt in with suggestions whenever I shared myfrustrations.

我有一个好朋友，经常插嘴提建议，当我只是想分享我的沮丧时。