n. a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
n. the region above the ground
n. a distinctive but intangible quality surrounding a person or thing
n. once thought to be one of four elements composing the universe (Empedocles)
n. 空气, 旋律, 态度
vt. 晾, 使通风, 夸耀