Etfe
[医][=ethylene-tetrafluoro-ethylene]乙烯四氟乙烯
🗣️ 情景例句
These days the police are just too soft on drug peddlers.
现在警察对于毒贩过于手软。
All things are difficult before they are easy.
凡事都是先难后易。
Did you leave it in water before you washed it?
在洗它之前您是不是把它泡在水里了？