1. 形容詞
   更敏銳的, 更敏捷的
   更鋒利的, 更銳利的
   更激烈的, 更強烈的
   keener on/about ...(人事物) :
   對...更感興趣的
   對...更熱心的
   對...更熱衷的
   keener on/about ...(動詞ing ...):
   對做...更感興趣的
   對做...更熱心的
   

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   同義字詞
   acute,delicate,fine,perceptive,quick,sensitive,sharp
   biting,bitter,cutting,penetrating,piercing,raw,sharp,shrewd,smarting,stinging
   cutting,edged,edgy,ground,honed,sharp,sharpened,stropped,trenchant,whetted
   alert,brainy,bright,brilliant,clever,exceptional,fast,hyperintelligent,intelligent,nimble,quick,quick-witted,sharp,sharp-witted,smart,supersmart,ultrasmart
   agog,antsy,anxious,ardent,athirst,avid,crazy,desirous,eager,enthused,enthusiastic,excited,great,greedy,gung ho,hot,hungry,impatient,nuts,pumped,raring,solicitous,thirsty,voracious,wild
   acute,almighty,blistering,deep,dreadful,excruciating,explosive,exquisite,fearful,fearsome,ferocious,fierce,frightful,furious,ghastly,hard,heavy,heavy-duty,intense,intensive,profound,terrible,vehement,vicious,violent
   

例句

1. Which seemed to make him keener .
2. Even the breeze had a keener edge.
3. Keener , James P., and James Sneyd.
4. And her voice took on a keener edge.
5. Some of the band were keener than others.
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