Polyfluorination
多氟化反应
🗣️ 情景例句
for Michelle and me to get to know each other better.
让Michelle和我彼此更了解。
You'll solve the problem if you concentrate upon it.
如果全神贯注，你就会解决这个问题。
At the moment, they cover every inch of floor space and I actually have to walk on them to get in or out of the room.
这会儿，书把地板的每一点空隙都占据了，我实际上是踩着这些书进出房间的。