Perfluorocarbon
全氟化碳
🗣️ 情景例句
What's your title?
你的头衔是什么？
I get up at 6 o'clock every day.
我每天在6点钟起床。
It took him four years to stage this elaborate joke simply to prove that critics do not always know what they are talking about.
他花了4年时间策划这出精心设计的闹剧，只是想证明评论家们有时并不解他们所谈论的事情。