Nitratine
[化] 钠硝石; 智利硝石; 硝酸钠
🗣️ 情景例句
and when I'm ready to go back,
而当我准备好要回去时，
I believe the first test of truly great man is his humility.
一个真正伟大的人，对他的第一个考验就是看他是否谦逊。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？