Precarburization
预先碳化[渗碳]
🗣️ 情景例句
Robbie pulled a boy out of the water.
Robbie从水中救出一个孩子。
I wonder if the dentist could fit me in early tomorrow?
请问明天一早牙科医生能抽空给我看一下吗？
That must be Conrad Reeves.
一定是康拉德。里弗斯。