单词：sharpens
v make crisp or more crisp and precise
v become sharp or sharper
v put (an image) into focus; we cannot enjoy the movie"
v make (images or sounds) sharp or sharper
v raise the pitch of (musical notes)
v give a point to
v make (one's senses) more acute
sharpen的用法和样例：
例句
- My pencil is blunt, could you lend me a knife to sharpen it?我的铅笔钝了，你能借我把刀子削一削吗？
- Generations of urban living sharpened their wits.世代居住在城市里使他们磨练了才智。
- Strikes will sharpen the country's dilemma.罢工将加剧这个国家的困境。
- The soldiers sharpened up their knives.战士们把刀磨得锋利。
- Jane voice sharpened as she became impatient.简变得不耐烦了，声音也变尖了。
- The debate sharpened considerably.辩论变得相当激烈。
词汇搭配
- sharpen one's wits增长才智
- sharpen one's knife for someone准备惩罚某人...
经典引文
Sharpening the curved blade with professional sweeps of the whetstone.
出自：A. Higgins
- hone细磨刀石
- grind磨
- whet磨
- file档案
- taper小蜡烛
- point观点
- improve改善
- perfect完美的
- tip小费
- brush up擦亮
- strop环索
- refine精炼
- polish光泽
- edge边缘
- inspire鼓舞
- keen敏锐的
- on在 ... 之上
- put放
- make做
- heighten增加
- focus焦点
- focalise 使 ... 聚焦
- focalize（使）聚焦
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