Precarburization
预先碳化[渗碳]
🗣️ 情景例句
Nope. I am in perfect health.
没有。我身体好的很。
If a donkey bray at you, don't bray at him.
傻瓜惹著你，你别跟他缠。
In actual fact, I think you're right.
确实，我认为你是对的。