柯林斯詞典pile-up /?pa?l?p/ (pile-ups) 1. N-COUNT A pile-up is a road accident in which a lot of vehicles crash into each other. 連環(huán)撞車事故 ...a 54-car pile-up. ...五十四輛車連環(huán)撞的一場事故。 返回 pile-up劍橋詞典a traffic accident involving several vehicles that hit each other 多車相撞，連環(huán)撞車 返回 pile-up