butt in
phrasal verb with butt verb [ I or T ] uk/bʌt/ us/bʌt/
informal
C2 打断谈话（或讨论）;插话，插嘴
to interrupt a conversation or discussion or someone who is talking
He kept on butting in with silly comments. 他不断插嘴，发表些愚蠢的评论。
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