Perfluocarbon
[化] 全氟化碳
🗣️ 情景例句
It's been great talking to you.
和你谈得真高兴。
I've been watching TV all night.
我看了一整晚的电视。
The first settlers on the plains of America were Native Americans.
美洲平原上的首批定居者是美洲土著人。