adj.粗鲁的；愚钝的；非常的
He made crass comments about her worn-out clothes. 他不留情面地评价了她被磨损的衣服。
He's so crass to talk to. 别跟他费口舌了，他太笨了。
n.粗鲁
愚钝.
粗厚.
