劍橋詞典the movement of fresh air around a closed space , or the system that does this 通風(fēng)（設(shè)備）；空氣流通（設(shè)備） Her room had poor ventilation and in summer it became unbearably stuffy . 她的房間通風(fēng)非常不好，到了夏天就悶得要命。 a ventilation system 通風(fēng)系統(tǒng) 返回 ventilation