Polyfluorohydrocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
He'll do anything to avoid getting down to math lessons,
他老是设法想逃避数学，
Feel free to bring your brother if he would like to come.
如果喜欢的话，你不妨带令兄一起来。
It had been wrapped up in newspaper and it contained half the money he had lost,
钱包是用报纸包着的，里面有他丢失的钱的一半，