插嘴 interrupt; chip in; put in a word; cut [chop; butt] in; interpose; break in; break in upon 插不上嘴 cannot get a word in edgeways; 在别人讲话时插嘴是不礼貌的。 it is not polite to interrupt when someone is talking
闯入 force on entrance (into); burst into [in]; intrude 闯入别人的房间 [屋子; 花园; 领土] intrude into other's room [house; garden; territory]; 闯入 (民宅) [法律] force entrance; 闯入会场 intrude oneself into a meeting; 他们吵吵嚷嚷地闯入房间。 they burst boisterously into the room