ventilation

剑桥词典

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