Etfe
[医][=ethylene-tetrafluoro-ethylene]乙烯四氟乙烯
🗣️ 情景例句
The professor runs a restaurant on the side.
这个教授的副业是开饭馆。
Thank you for your nice present.
谢谢你那么好的礼物。
Jim! Come here, please.
吉姆，请过来。