Npk
abbr. Nitrogen; Phosphorus and Potassium 氮磷钾肥
🗣️ 情景例句
This weekend I'm going to install a home security system.
这个周末我要装一套家庭保安系统。
I wrote to him last Friday.
我上个星期五写信给他。
I've live here for twenty years.
我在这里住了20年了。