Fluorgypsum
氟石膏
🗣️ 情景例句
We are, too.
我们也很兴奋。
I played ping-pong this morning.
我今早在打乒乓球。
Officials used to have trouble with the foreign names of people passing through Ellis Island, and because they were so busy, many people's names got changed in the rush.
官员们过去总是搞不清埃利斯岛过境人员的外国姓名，因为他们非常繁忙，所以在过境的人蜂拥而至的时候，许多人的姓名都被更改了。