PHRASAL VERB 插嘴;干涉;插手 If you say that someone is butting in, you are criticizing the fact that they are joining in a conversation or activity without being asked to.
Sorry, I don't mean to butt in... 对不起,我并不是想插嘴。
'I should think not,' Sarah butted in. “我不这么认为,”萨拉插嘴说。