名词
中文翻译：锐利
同义词：
['sharpness', 'keenness', 'acuteness例句：1. The knife was so trenchancy that it could cut through a sheet of metal.（这把刀非常锋利，能够切断金属板。）']
例句：
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1. The knife was so trenchancy that it could cut through a sheet of metal.
这把刀非常锋利，能够切断金属板。
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2.The hunter's eyes were trenchancy, able to spot even the smallest prey.
猎人的眼睛非常敏锐，能够发现最小的猎物。
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3.The sharpness of her mind made her an excellent problem solver.
她的思维敏锐，使她成为一个优秀的问题解决者。