Fluoram
二氟化铵
🗣️ 情景例句
I had lots of fun tonight.
今晚我玩得很开心。
Fame like a river is narrowest at its source and broadest afar off.
名誉像条河，源头最狭窄，远处最宽阔。
But we won't have our big family get-together until Christmas.
但我们要等到圣诞节才会有家庭大团圆。