Air grating
[機] 通風格
?? 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;
grating
[['greiti?]]
n. 光柵, 摩擦, 摩擦聲\\na. 令人氣惱的, 刺耳的
??? 情景例句
I have no time for extra-curricular activities.
我可沒時間參加課外活動。
A good, satisfying job can be the product of years of education.
一個理想而令人滿意的工作，是在接受幾年的教育之下才能獲得的。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
當確定鉆孔地點后，我們就在那里豎起一個井架。