Depropanization
丙烷馏除
🗣️ 情景例句
We started by making safety equipment for many sports.
我们是以做运动产品的安全器材起家的。
It's a piece of cake.
这很容易。
Waves are the children of the struggle between ocean and atmosphere.
海浪是大海和空气相斗的产物。