Ionitriding
离子氮化
🗣️ 情景例句
What's going on?
你在忙些什么？
What do you want us to do?
您看怎么办好？
Pretending to speak seriously, one of the workmen asked if he might make a telephone call before being taken to the station.
其中一个工人装模作样地问道，在被带往警察局之前，是否可以打一个电话。