adj.懦弱的；畏缩的
n.懦夫
No man wants to be thought a craven person. 没有人愿意被认为是懦弱的人。
He is a craven deserter. 他是个胆小的逃兵。
A hero risks his life to help others; a craven runs from the scene. 英雄冒着生命危险去帮助别人；而懦夫却临阵脱逃。
adv.胆怯地；胆小地
