Precarburization
预先碳化[渗碳]
🗣️ 情景例句
Sorry, Richard. They don't have it.
对不起 Richard 他们那里没有。
I'm going to but two gallons.
我要买两加仑。
This explanation evidently conveyed something to the woman who searched shelf after shelf.
他的解释显然对女售货员有些启示。她一个货架接着一个货架地寻找，