Polyfluoride
多氟化物
🗣️ 情景例句
Hey, leaving me?
嗨 ，丢下我啦？
It is not good to wake a sleeping lion.
睡狮莫惊。
Here are the results. Girls' relay: The winners -- Class 4! (Hooray!)
获胜者--4班！（好！）