keen 1

锐利的；锋利的

尖刻的；敏锐的

强烈的；深切的

热心的；渴望的

（与连on用）热心…的；对…有兴趣；喜爱…的

低廉的（价格）

keen 2

（常与over, for连用）恸哭

keen

锋利的, 敏锐的, 敏捷的, 热心的, 渴望的

keen

1. a funeral lament sung with loud wailing

(hypernym) , , , ,

(derivation)

(classification) , ,

1. express grief verbally; "we lamented the death of the child"

(synonym)

(hypernym) ,

(entail) ,

1. having or demonstrating ability to recognize or draw fine distinctions; "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations"

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(similar)

2. intense or sharp; "suffered exquisite pain"; "felt exquisite pleasure"

(synonym)

(similar)

3. very penetrating and clear and sharp in operation; "an incisive mind"; "a keen intelligence"; "of sharp and active intellect"

(synonym) ,

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4. very good; "he did a bully job"; "a neat sports car"; "had a great time at the party"; "you look simply smashing"

(synonym) , , , , , , , , , , , , ,

(similar)

(classification)

5. as physically painful as if caused by a sharp instrument; "a cutting wind"; "keen winds"; "knifelike cold"; "piercing knifelike pains"; "piercing cold"; "piercing criticism"; "a stabbing pain"; "lancinating pain"

(synonym) , , , , ,

(similar)

6. having a sharp cutting edge or point; "a keen blade"

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