keen

adj.

热切；热情 eager/enthusiastic

1. 渴望；热切；热衷于
   wanting to do sth or wanting sth to happen very much
   1. John was very keen to help.
      约翰很热心，愿意帮忙。
   2. We are keen that our school should get involved too.
      我们盼着自己学校也参与其中。
   3. I wasn't too keen on going to the party.
      我不太想去参加这次聚会。
2. 热情的；热心的
   enthusiastic about an activity or idea, etc.
   1. a keen sportsman
      热心运动的人
   2. one of the keenest supporters of the team
      这个队最热情的支持者之一

喜爱 liking sb/sth

3. 喜爱；（对…）着迷，有兴趣
   liking sb/sth very much; very interested in sb/sth
   1. Tom's very keen on Anna.
      汤姆迷上了安娜。
   2. She's not keen on being told what to do.
      她不喜欢别人向她发号施令。

聪明 clever

4. 思维敏捷的；机灵的；机智的
   quick to understand
   1. a keen mind/intellect
      敏捷的思考 / 头脑

思想；感情 ideas/feelings

5. 强烈的；浓厚的；深厚的
   strong or deep
   1. a keen sense of tradition
      强烈的传统意识
   2. He took a keen interest in his grandson's education.
      他对孙子的教育很感兴趣。

感官 senses

6. 灵敏的；敏锐的
   highly developed
   1. Dogs have a keen sense of smell.
      狗的嗅觉很灵敏。
   2. My friend has a keen eye for (= is good at noticing) a bargain.
      我的朋友最会发现便宜货。

竞争 competition

7. 激烈的；紧张的
   involving people competing very hard with each other for sth
   1. There is keen competition for places at the college.
      要在这所学院就读竞争是非常激烈的。

价格 prices

8. 低廉的；有竞争力的
   kept low in order to compete with other prices

风 wind

9. 寒冷刺骨的
   extremely cold

刀 knife

10. 锋利的；锐利的
    having a sharp edge or point

verb

1. （为死者）恸哭，哀号
   to make a loud high sad sound, when sb has died

1. ADJ-GRADED 渴望的；热切的；热衷的
   If you are keen on doing something, you very much want to do it. If you are keen that something should happen, you very much want it to happen.
   1. You're not keen on going, are you?...
      你不太想去，是吗？
   2. Both companies were keen on a merger...
      两家公司都很想合并。
   3. I'm very keen that the European Union should be as open as possible to trade from Russia...
      我热切地希望欧盟尽可能开放与俄罗斯的贸易。
   4. She's still keen to keep in touch...
      她仍旧很愿意保持联系。
   5. I am not keen for her to have a bicycle.
      我不太放心她有辆自行车。
2. ADJ-GRADED （对…）喜爱的，满怀热情的
   If you are keen on something, you like it a lot and are very enthusiastic about it.
   1. I got quite keen on the idea...
      我对这个想法燃起了极大的热情。
   2. I wasn't too keen on physics and chemistry.
      我对物理和化学不是太感喜爱。
3. ADJ-GRADED (对某一活动)热情的，热心的
   You use keen to indicate that someone has a lot of enthusiasm for a particular activity and spends a lot of time doing it.
   1. She was a keen amateur photographer.
      她是业余摄影爱好者。
4. ADJ-GRADED (人)生性热情的，兴趣广博的
   If you describe someone as keen, you mean that they have an enthusiastic nature and are interested in everything that they do.
   1. He's a very keen student and works very hard...
      他是个很好学的学生，学习非常努力。
   2. You're all very keen.
      你们都很热心。
5. ADJ-GRADED （兴趣或感情）浓厚的，强烈的
   A keen interest or emotion is one that is very intense.
   1. 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。
   2. ...his keen sense of loyalty.
      他强烈的忠诚感
6. ADJ-GRADED （支持）热情的，积极的
   If you are a keen supporter of a cause, movement, or idea, you support it enthusiastically.
   1. 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。
   2. He is a keen advocate of park-and-ride schemes.
      他是“停车再换乘”计划的热情拥护者。
7. ADJ-GRADED 思维敏捷的；机灵的；机智的
   If you say that someone has a keen mind, you mean that they are very clever and aware of what is happening around them.
   1. They described him as a man of keen intellect...
      他们把他描述成一个才思敏捷的人。
   2. Mr Walsh has a keen appreciation of the priorities of the electorate...
      沃尔什先生深刻理解选民最为关注的事项。
   3. I can see you have a keen sense of humour.
      我能看出你极具幽默感。
8. ADJ-GRADED （目光或听觉）灵敏的，敏锐的
   If you have a keen eye or ear, you are able to notice things that are difficult to detect.
   1. ...an amateur artist with a keen eye for detail...
      对细节非常敏感的业余画家
   2. Brand's keen ear caught the trace of an accent.
      布兰德敏锐的耳朵听出了口音。
9. ADJ-GRADED （对某人）倾心的,迷恋的
   If you are keen on someone, you find them sexually attractive and want to get to know them better.
   1. Mick has always been very keen on Carla.
      米克一直迷恋卡拉。
10. ADJ-GRADED （战斗或竞争）激烈的，紧张的
    A keen fight or competition is one in which the competitors are all trying very hard to win, and it is not easy to predict who will win.
    1. There is expected to be a keen fight in the local elections.
       预计地方选举的竞争会非常激烈。
11. ADJ-GRADED （价格）低廉的，有竞争力的
    Keen prices are low and competitive.
    1. The company negotiates very keen prices with their suppliers.
       该公司通过讨价还价从供货商那里拿到了很低的价格。
12. VERB （为死者）恸哭，哀号
    If someone keens, they cry out or make sounds to express their sorrow at someone's death.
    1. He tossed back his head and keened...
       他仰天恸哭起来。
    2. Someone was making a low, keening noise.
       有人正在低声哀泣。
13. PHRASE 对…十分热衷；对…非常热情
    If you say that someone is mad keen on something, you are emphasizing that they are very enthusiastic about it.
    1. So you're not mad keen on science then?...
       那么你对科学并不是太感兴趣了？
    2. She was mad keen to go.
       她非常想去。
    3. ...a mad keen golfer.
       高尔夫发烧友

1. They'll be keen to enhance their reputation abroad
   他们会非常渴望提高他们在国外的声誉。
2. The wind had veered to north, bringing clear skies and a keen frost.
   风向已经转北，带来了晴朗的天空和严重的霜冻。
3. You're not keen on going, are you?
   你不太想去，是吗？
4. Both companies were keen on a merger
   两家公司都很想合并。
5. I'm very keen that the European Union should be as open as possible to trade from Russia
   我热切地希望欧盟尽可能开放与俄罗斯的贸易。
6. She's still keen to keep in touch
   她仍旧很愿意保持联系。
7. I am not keen for her to have a bicycle.
   我不太放心她有辆自行车。
8. I got quite keen on the idea
   我对这个想法燃起了极大的热情。
9. I wasn't too keen on physics and chemistry.
   我对物理和化学不是太感喜爱。
10. She was a keen amateur photographer.
    她是业余摄影爱好者。
11. He's a very keen student and works very hard
    他是个很好学的学生，学习非常努力。
12. You're all very keen.
    你们都很热心。
13. 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。
14. 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。
15. He is a keen advocate of park-and-ride schemes.
    他是“停车再换乘”计划的热情拥护者。
16. They described him as a man of keen intellect
    他们把他描述成一个才思敏捷的人。
17. Mr Walsh has a keen appreciation of the priorities of the electorate
    沃尔什先生深刻理解选民最为关注的事项。
18. I can see you have a keen sense of humour.
    我能看出你极具幽默感。
19. Brand's keen ear caught the trace of an accent.
    布兰德敏锐的耳朵听出了口音。
20. Mick has always been very keen on Carla.
    米克一直迷恋卡拉。
21. There is expected to be a keen fight in the local elections.
    预计地方选举的竞争会非常激烈。
22. The company negotiates very keen prices with their suppliers.
    该公司通过讨价还价从供货商那里拿到了很低的价格。
23. He tossed back his head and keened
    他仰天恸哭起来。
24. Someone was making a low, keening noise.
    有人正在低声哀泣。
25. So you're not mad keen on science then?
    那么你对科学并不是太感兴趣了？
26. She was mad keen to go.
    她非常想去。
27. He has the keen eye and robust approach needed.
    他具备了所需的敏锐的洞察力和坚定的行事态度。
28. I'm a keen theatre-goer.
    我是个戏迷。
29. He transmitted his keen enjoyment of singing to the audience.
    他把自己对演唱的激情投入传递给了观众。
30. You are really keen on playing chess.
    你们下棋的瘾头可真不小。

  acute keen sharp【导航词义：敏锐的】

  acute adj. 敏锐的，灵敏的

〔辨析〕用于描述人们的想法、感觉，通常指能够注意到被观察物体的细微差异的。

  keen adj. 敏锐的，灵敏的

〔辨析〕用于描述思想感情和感官，强调敏锐的、聪慧的。

  sharp adj. 敏锐的，灵敏的

〔辨析〕既可指头脑灵活的，又可指观察入微的。

adj.

(as) keen as mustard

• 极其渴望；极为热心；非常热情
  wanting very much to do well at sth; enthusiastic

mad keen (on sth/sb)

• （对…）痴迷，迷恋；特别喜欢
  liking sth/sb very much; very interested in sth
  1. He's mad keen on planes.
     他对飞机十分着迷。

noun

1. a funeral lament sung with loud wailing

verb

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

   Synonym:    lament

adj

1. having a sharp cutting edge or point
   1. a keen blade

2. painful as if caused by a sharp instrument
   1. a cutting wind
   2. keen winds
   3. knifelike cold
   4. piercing knifelike pains
   5. piercing cold
   6. piercing criticism
   7. a stabbing pain
   8. lancinating pain

   Synonym:    cuttingknifelikepiercingstabbinglancinatelancinating

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

   Synonym:    bang-upbullycorkingcrackingdandygreatgroovyneatniftynot bad(p)peachyslap-upswellsmashing

4. intense or sharp
   1. suffered exquisite pain
   2. felt exquisite pleasure

   Synonym:    exquisite

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

   Synonym:    acutediscriminatingincisiveknifelikepenetratingpenetrativepiercingsharp