Nitrato
硝酸基
🗣️ 情景例句
Hi-tech companies are making big bucks nowadays.
现在高科技公司是最赚钱的。
My father is over 60 years old.
我父亲已年过六十了。
You're welcome to stay with us next time.
欢迎您下次再光临我们的饭店。