mind做名詞可數嗎

　　例句：

　　Would you mind leaving us alone for a few minutes?

　　你不介意讓我們單獨待一會吧？

　　The mind needs exercise as well as the body.

　　大腦同身體一樣需要鍛煉。

　　Two keen minds that they are, they took to each other.

　　兩個聰明人，惺惺惜惜。