Nitrato
硝酸基
🗣️ 情景例句
How wonderful to meet you again!
又一次见到您真是太高兴了！
Shall we take a break?
我们是否应该休息一下？
OK, said Jim. We can have some for our picnic lunch.
“好，”吉姆说，“我们午餐可以吃点香蕉。”