Etfe
[医][=ethylene-tetrafluoro-ethylene]乙烯四氟乙烯
🗣️ 情景例句
the music, the concerts.
音乐，音乐会。
I assume you've decided against buying a new car.
我假设你决定不买一辆新汽车。
Yes, Mum. What do you want to buy?
好，妈妈。你想买什么？