knock together 1. 匆匆拼凑成，草草做成(或建成) I'm no woodworker, but I can knock a bookshelf together when necessary. 我不是木匠，但必要时我能马马虎虎做成一只书架。 Neil had to knock together some explanation of his intrusion. 尼尔不得不为打扰别人而拼凑一个借口。 2. (使)碰撞 My knees were knocking together with fear. 我吓得两腿直打哆嗦。