Hexafluoride
n. 六氟化物
🗣️ 情景例句
the autograph of somebody who may be famous someday.
将来有可能成名的人的亲笔签名。
Could you tell me where is the exit?
你能不是告诉我出口在哪里？
What's this in English?
这个（东西）用英语怎么说？