Hcfc
n. 氢氯氟碳化物
🗣️ 情景例句
Apply as much force as is necessary.
需用多少力量就用多少。
I was sick yesterday,but I'm better today.
我昨天病了，但是我今天好一些了。
Have we been introduced?
对不起，我们彼此介绍过了吗？