Nitrocementation
碳氮共渗
🗣️ 情景例句
His job provides a very handsome salary.
他工作的薪酬十分可观。
Parents usually put a small red paper packet under their child's pillow.
父母常常会在孩子枕头下放一个小红包。
That is not in the agreement.
借约上可没有这一条。