Hydrofluorocarbon
= HFC
✅ 同义词
🗣️ 情景例句
How old are you, Gerald?
Gerald，你今年多大啦！
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
When he returns home at night, he always finds that someone has parked a car outside his gate.
当他夜里回到家时，总是发现有人把车停在他家大门外。