Perfluorochemical
[机] 全氟化化合物
🗣️ 情景例句
What kind of advice are you looking for?
希望能得到什么建议？
Is the departure time on schedule?
起飞时间准时吗？
It's not his work that bothers me; it's his attitude.
困扰我的不是他的工作，而是他的态度。