n. 天空;气氛;空运;(简单易记的)曲调
vt.& vi. 晾晒;烘干;播送;广播
vt. 使房间通风, 透气
Draughts help to circulate air.
通风有助于循环空气。
The night air was very still.
夜晚的空气静止不动。
She gulped air into her lungs.
她大口地把空气吸入肺部。
He breathed in the frosty air.
他吸进冰冷的空气。
The rain had freshened the air.
下雨使空气变得清新了。