Diazohydroxide
重氮氢氧化物
🗣️ 情景例句
He met his girfriend throught a public chat room.
他是在一个公共聊天室里认识他女友的。
Don't fly till you wings are feathered.
羽毛未丰不要飞。
How old are you?
你多大啦？