N-p-k
[医]nitrogen,Phosphorus,Kalium 氮、磷、钾（肥料）
🗣️ 情景例句
I speak fairly good English and I enjoy meeting different kinds of people.
我的英语讲得很流利，而且我喜欢接触不同的人。
We waved until the car was out of sight.
我们挥手直到汽车消失。
Certainly, Mum! What shall we cook?
当然啦，妈！ 我们做什么菜？