Carburizing
[机] 渗碳
🗣️ 情景例句
It's John. Didn't you recognize my voice?
我是约翰。你没听出我的声音？
A Jack of all trades and master of none.
三脚猫无所长。
The best-known movie awards are the Academy Awards.
最著名的电影奖是奥斯卡金像奖。