courageous 与 courageful 的区别是什么谢谢~

courageous

a.勇敢的；无畏的

例句:

For war means the killing of millions of the best and the most courageous of men who might contribute something to human progress.

因为战争意味着数百万可能为人类进步作出贡献的最优秀、最勇敢的栋梁之材的牺牲；

He is such a courageous man that he does not fear death at all.

他是一个非常勇敢的人，所以一点也不怕死。

It was courageous of him to oppose his chief.

他敢反对他的上司，真是勇敢。

没得courageful这个单词，只有courage，意思是勇气