keen

keen¹
adjective

having or showing eagerness or enthusiasm
热心的，热切的，渴望的；热情的
a keen gardener.
一位热情的园丁。
a keen desire to learn.
一种热切的求知欲望。
■(of activity or feeling) intense
（活动）激烈的；（感情）强烈的
there could be keen competition to provide the service.
提供这种服务可能有激烈的竞争。
■[predic.](keen on)interested in or attracted by (someone or something)
对…有兴趣的；被…吸引的
Bob makes it obvious he's keen on her.
鲍勃明显表示他被她吸引住了。
sharp or penetrating, in particular
锋利的；敏锐的，尖锐的，尤指
■(of a sense) highly developed
（感觉）灵敏的，敏锐的
I have keen eyesight.
我的视力敏锐。
■(of mental faculties) quick to understand or function
（智力）机敏的，聪明的；敏锐的
her keen intellect.
她敏锐的理解力。
■(of the air or wind) extremely cold; biting
（空气或风）严寒的；刺骨的
■(of the edge or point of a blade) sharp
（刀刃或刃尖）尖锐的
■(poetic/literary)(of a smell, light, or sound) penetrating; clear
(诗/文)（气味、光线或声音）尖锐的，穿透的，贯穿的，渗透的；清晰的，清楚的
(Brit.)(of prices) very low; competitive
(英)（价格）低廉的；有竞争力的
[predic.](N. Amer. informal, dated)excellent
(北美，非正式，旧)优秀的，卓越的，极好的
I would soon fly to distant stars—how keen!.
我即将飞到遥远的星球上——多美妙啊！。

常用词组
(as) keen as mustard

(Brit. informal)extremely eager or enthusiastic
(英，非正式)极热心的，极热切的；极热情的

派生
keenly
adverb
keenness
noun
语源

Old English cēne 'wise, clever', also 'brave, daring', of Germanic origin; related to Dutch koen and German kühn 'bold, brave'. Current senses date from Middle English

keen²
verb

[no obj.]wail in grief for a dead person; sing a keen
为死者而痛哭，哀号；唱挽歌
■[usu. as noun keening]make an eerie wailing sound
发出可怕的呜咽声；呼啸
the keening of the cold night wind.
夜晚寒风可怕的呜咽声。

noun

an Irish funeral song accompanied with wailing in lamentation for the dead
（哀哭死者时的）爱尔兰葬歌

派生
keener
noun
语源

mid 19th cent.: from Irish caoinim 'I wail'

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