Libethenite
磷铜矿
🗣️ 情景例句
Good-bye, Robbie. Good luck.
再见 ，Robbie ，祝你好运。
Let me speak to you about some of the ways to successfully negotiate with foreigh businessmen.
但我仍然想跟你谈谈一些与外国商人成功谈判的方法。
That's OK.
可以。