Fluor-
[医]“氟”和“荧光”的词首
🧩 词语组成解析
n. [矿]氟石
🗣️ 情景例句
My paper work will wait.
文书工作可以缓一缓。
I've got a terrible pain in my back.
我的背很痛。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。