Precarburization
预先碳化[渗碳]
🗣️ 情景例句
So I'm sure to get opportunities to display my talent in advertisement.
所以我相信有机会发挥我的广告才能。
What company do you work for?
你在哪家公司做事？
For them the working hours are never long enough.
对他们来说，工作时间总不会太长，