Polyfluocarbon
[化] 多氟烃
🗣️ 情景例句
Try to take it easy.
放轻松点。
You should wear a heavy coat, It's below zero today.
你应该穿一件厚大衣，因为今天在零度以下。
Here you are But you mustn't come home after a quarter past eleven.Do you hear?
拿去。但你不能超过11点1刻回家。听见了吗？