Hydrofining
加氢精制, 氢化提纯
🗣️ 情景例句
Is there a limit to how many I can purchase at this price?
我买这种东西在数量上有什么限制吗？
To ride a bicycle
骑自行车
It is one of the ugliest faces I have ever seen.
这是我见过的最丑陋的头像之一。