Nitrocementation

碳氮共渗

🗣️ 情景例句

Yes, he makes house calls, but the doctor has an opening only after 2:00 p.m.
好,他愿出诊,但他在下午2点后才有空。
I apologize for that, sir.
请您原谅。
She won't have any trouble.
对她不会有什么困难的。
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