Precarburization
预先碳化[渗碳]
🗣️ 情景例句
Leave well enough alone.
得过且过，见好就收。
Would you care to see a movie tonight?
今晚你要不要去看电影？
No two sorts of birds practise quite the same sort of flight;
没有任何两种鸟的飞行方式是相同的。