柯林斯詞典air conditioner (air conditioners) 1. N-COUNT An air conditioner is a machine that keeps the air in a building cool and dry. 空調(diào)機 返回 air conditioner劍橋詞典a machine that keeps the air in a building cool 空調(diào)機；空調(diào)設(shè)備 返回 air conditioner