名词
中文翻译：锐利的
同义词：
['sharp', 'keen', 'pointed']
例句：
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1.The knife is keen-set and can cut through almost anything.
这把刀非常锋利，几乎可以切穿任何东西。
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2. She sharpened the knife with a file to make it keener.
她用砂纸磨快了刀，使它更锋利。
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3.He had a keen eye for detail, which helped him succeed in his job.
他对细节有着敏锐的观察力，这帮助他在工作上取得了成功。