Etfe
[医][=ethylene-tetrafluoro-ethylene]乙烯四氟乙烯
🗣️ 情景例句
I'm proud of all my grandchildren, Mr. Carlson.
我为我所有的孙子孙女感到骄傲 Carlson先生。
But it looks like that's out of the question.
但现在看起来不太可能。
But he wanted to see the old folk again and to visit my mother's grave.
但是，他想看一看家乡父老乡亲，为我的母亲扫墓。