Nitratine
[化] 钠硝石; 智利硝石; 硝酸钠
🗣️ 情景例句
He keeps himself fit by running 5 miles every day.
他每天跑五公里以保持身体健康。
My hobby is collecting coins.
我的嗜好是收集硬币。
Looking at his watch, he saw that it was one o'clock, but the bell struck thirteen times before it stopped.
他一看表，才1点钟，可是那钟一边敲了13下才停。