Fluoram
二氟化铵
🗣️ 情景例句
Today is the twelfth. Why?
今天是十二号。怎么？
You could say that too.
也可以这么说啦！
In the class there are two American girls. They are twins. Their names are Lily and Lucy.
在班上有两个美国女孩，他们是双胞胎，名字叫鲁茜、莉莉。