Polyfluorohydrocarbon
[化] 多氟烃; 多氟代烃
🗣️ 情景例句
Give me a call later, Malcolm.
请稍后打电话给我 ，Malcolm。
What? Already? Won't you have more coffee?
怎么，已经要走了？要不要再喝点咖啡？
The doctors have not yet decided how the woman died.
医生们至今还未确定这位妇女的死因。