v.（为死者）恸哭，哀号( keen的过去式和过去分词 )； 双语释义：adj.(形容词)锋利的 (of the points and cutting edges of knives, etc.) sharp热衷的,热心的,渴望(做某事)的 (of a person) having a strong, active interest in sth; eager to do sth激烈的,紧张的 (of a competition or struggle) done with eagerness and a