Air-flow
[機] 氣流
?? 詞語組成解析
air
[??]
n. 天空;氣氛;空運;（簡單易記的）曲調;
vt.& vi. 晾曬;烘干;播送;廣播;
vt. 使房間通風， 透氣;
flow
[fl?u]
vi. 流;垂;流出;（談話、文體等）流暢;
n. 流動;滔滔不絕;漲潮;連貫;
vt. 使泛濫;淹沒;排出;
??? 情景例句
I went back for it, but the ferry was gone.
等我回去找的時候 船已經開走了。
Leave it up to me!
這事就交給我吧。
The most unusual car was a Benz which had only three wheels.
而最不尋常的一輛則要屬只有3只輪子的奔馳牌汽車了。