Hcfc
n. 氢氯氟碳化物
🗣️ 情景例句
I have received the secretarial training for six months.
我曾接受过6个月的秘书训练。
Don't worry about it.
别担心。
No. He just asked if you could ring him back. Here's the number.
没有，他只问你能不能给他回一个电话。这是他的电话号码。