Fns
abbr. flask-nitrogen supply 细颈瓶氮供应品
🗣️ 情景例句
Nets for tennis and badminton and so on.
有网球和羽毛球用的网等等。
He who hath good health is young,and he is rich who owes nothing.
健康葆青春，无债即富有。
Yes, I have.
是的，我刚拍完。