Perfluorocyclopropane
全氟环丙烷
🗣️ 情景例句
Well, vitamins or no vitamins, I enjoy walking in the sunshine. Let's go.
我不在乎有没有维生素，我喜欢在阳光下散步。走吧。
We are sure to defeat them.
我们一定会打败他们。
How are things going?
事情进展得怎样？