Polyfluorohydrocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
He should just about get by in the exam.
他这次考试还能勉强及格。
On a cold day, a warm fireplace feels very nice.
在天寒地冻的日子，温暖的炉火旁是很舒服的。
Oh, yes, Mr. Chou. We've been looking forward to this.
啊，周先生，我们一直在等着您来。