Polyfluocarbon
[化] 多氟烃
🗣️ 情景例句
With a little help from the ASPCA,
可以请ASPCA帮忙，
How old are you?
你多大了？
Yes, please. But why do you call them mooncakes?
行啊，请给我一个吧。但你们为什么叫它月饼？