Hydrofluorocarbon
= HFC
✅ 同义词
🗣️ 情景例句
There's nothing else in the appointment book.
在工作日， 没有别的事了。
Look before you leap. First think, then act.
三思而后行。
Can you see him please?He has a bad cold, too!
您能看看他吗？他也得了重感冒！