Perfluorodecalin
[化] 全氟萘烷
🗣️ 情景例句
Thank you, sir.
多谢，先生。
It doesn't add up!
这就怪啦！
I'm poor, but I always enjoy myself! he said. I don't know why!
“我很穷，但我总是过得很愉快！”他说，“我不懂为什么！”