courage可數(shù)嗎

　　Her courage is an example to us all.

　　她的勇氣是我們大家的榜樣。

　　He admired her courage and constancy.

　　他欽佩她的勇氣和忠貞。

　　He should be applauded for his courage.

　　他應(yīng)該因其勇氣而受到稱贊。