Salitre
硝石, 钠硝, 硝酸钠
🗣️ 情景例句
I always eat three square meals a day.
我总是每天三顿饭都好好吃。
I'm under a lot of pressure.
我压力很大。
She works very hard and is very helpful.
她工作非常努力，对同学们帮助很大。