Carbusintering
渗碳烧结
🗣️ 情景例句
No, but I hope you will from now on.
是的，还没有。不过我希望从现在起就会有。
Sometimes I make mistakes when I speak English.
当我说英语时，有时我犯错误。
I've been here for about two years. I've been here since 1993.
我到这儿大约有两年时间了。我自1993年就到这儿学习。