keened

1. 锋利的 (of the points and cutting edges of knives, etc.) sharp
2. 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
3. 激烈的,紧张的 (of a competition or struggle) done with eagerness and activity on both sides
4. 良好的; 敏锐的,敏捷的 (of mind, feelings, senses, etc.) good, strong, quick at understanding, etc.

• keen edge锋利的刀刃
• keen interest强烈的兴趣

• keen to pass the examination渴望通过考试
• keen to visit that city很想去参观那个城市

• keen about going to the picnic希望去野餐
• keen about〔on〕 music爱好音乐
• keen of hearing听力敏锐

keen on喜爱；热衷于…

keen competition剧烈竞争

keen interest强烈的兴趣

1. The blind have a keen sense of touch.
   盲人有敏锐的触觉。
2. Their keen eyes can penetrate the water to a depth of forty feet.
   他们锐利的眼睛能透过水面看到40 英尺的深处。
3. Be brave, a fence between makes love more keen.
   勇敢点,受到阻隔的爱情会更强烈。
4. The razor has a very keen edge.
   这把剃刀有锋利的口。
5. They have a wide knowledge of everyday things, and a keen interest in their particular city and state.
   他们对日常事情所知甚广,对所在的城市和州深为关切。
6. He's keen, but his youth is a minus factor.
   他非常精明, 但他的年轻却是个不利的因素。