come down phr v [I] 1 if a price, level etc comes down, it becomes lower 〔价格、水平等〕下降: Wait until prices come down before you buy. 等到价格回落后你再买。 2 if a building or tree comes down, it falls or is made to fall 〔建筑物或树〕倒下; 被弄倒: This old wall will have to come down. 这堵旧墙必须被拆掉。