Pentafluorated
五氟化的
🗣️ 情景例句
I don't think we should see each other any more.
我觉得以后咱们还是别再见面了。
What's lost is lost.
流水落花春去也。
He wrote books about communism. He said that all communists should help each other.
他写了不少关于共产主义的著作。他说所有的共产党人都应该互相帮助。