adj.厉害的,强烈的,敏锐的,敏捷的,锐利的,热心的
vi.(为死者)恸哭,哀号
n.〈英〉号哭,恸哭
We were very keen when the 1954 Rally came round.
1954年的集会开始时,我们都非常热切。
He's been a keen supporter of the Labour Party all his life.
他一生都是工党的热情拥护者。
He had retained a keen interest in the progress of the work.
他对那项工作的进展一直很关心。