keenkeenD.J.:[ki:n]K.K.:[kin]adj.1.■锋利的This knife is very keen.这把小刀非常锋利。2.■热衷的, 热心的, 渴望(做某事)He is not very keen on jazz.他对爵士音乐不太感兴趣。The boy is keen to go to sea.这孩子很想去航海。The parents were keen that their daughter should become musician.父母渴望他们的女儿成为音乐家。3.■激烈的, 紧张的4.■良好的; 敏锐的, 敏捷的She has a keen mind.她头脑机敏。My daughter is keen of hearing.我的女儿听觉灵敏。