Polyfluorocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
I am hungry.
我真是饿了。
Will you take that library book back for me?
你能帮我把书还回图书馆吗？
Bison were killed for their meat, while their fur provided warm clothing during cold winters.
他们杀野牛，吃野牛肉，用野牛毛皮制成冬季御寒的衣服。