Air casing
[機] 氣夾層
?? 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;
casing
[['keisi?]]
n. 箱, 盒, 包裝, 框, 套管\\n[化] 汽車外胎
??? 情景例句
My vacation was terrible, it rained the whole time.
我的假期簡直糟透了，整天都在下雨。
Don't be ashamed.
不要害羞。
It is only someone looking on from outside that can inject the dangerous thoughts.
只有外部的旁觀者才能灌輸危險的思想。