Oxynitrate
含氧硝酸盐
🗣️ 情景例句
Wouldn't it be a good idea to pick up your room?
你是不是考虑把自己的屋字收拾一下。
An idle youth, a needy age.
少壮不努力，老大徒伤悲。
My holidays passed quickly, but I did not send cards to my friends.
假期过得真快，可我还没有给我的朋友们寄过一张明信片。