human being是可數名詞嗎

　　He didn't really believe that any human being could read another's mind.

　　他并不真地相信一個人能夠看出另一個人的心思。

　　What is a good, decent human being?

　　什么樣的人是善良、體面的人？

　　It is your birth right as a human being.

　　這是你作為一個人與生俱來的權利。

　　I am a human being at sea like you, like everyone.

　　我和你一樣，和每個人一樣，感到茫然困惑。

　　Mandela was not only a great president, but a great human being.

　　曼德拉不僅是一位好總統，更是一名偉人。