Natrocalcite
钠方解石
🗣️ 情景例句
Please excuse me. I'm very sorry.
请原谅我， 我真的很不好意思。
He may get a grant to study abroad next year.
他明年也许会获得留学奖学金。
This letter's full of mistakes. I want you to type it again.
这封信里错误百出。我要你重打一遍。