Hydrofluorocarbon
= HFC
✅ 同义词
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
To toast, their health!
为了健康干杯！
Quite by accident. I moved a few peas and there it was.
很偶然。我挪了几颗青豆就发现了。