Permissible dust emission
[机] 容许扬尘
🧩 词语组成解析
dust
[dʌst]
n. 灰尘;（建筑物内、家具或地板等上的）灰尘;遗骸，尸体，人体，人;〈口〉金粉，粉末，粉剂，花粉;
vt.& vi. 拂（一拂），掸（一掸）;
vt. 撒（粉）于;擦去…的灰尘;擦灰;撢去;
🗣️ 情景例句
Paper or plastic?
现金还是信用卡？
It'll take a few more weeks for the bone to mend.
还需要花两三周骨头才能复原。
but rarely with bicycles made for two.
不过双人自行车则不容易看到。