Etfe
[医][=ethylene-tetrafluoro-ethylene]乙烯四氟乙烯
🗣️ 情景例句
You've got lots of time to improve your English.
你已经花了好多时间去提高你的英语水平。
Revolutions are not made with rose water.
革命不是绣花。
Such an attempt only aggravates the strain of mental effort.
这种愿望只能加剧精神紧张。