名词
中文翻译：Unknown
同义词：
['sharp', 'keen', 'pointed', 'keen-eyed']
例句：
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1. She had a sharp tongue and could be quite cutting at times.
她说话直率，有时很刻薄。
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2. The sun was shining brightly, making everything look sharp and clear.
阳光明媚，让一切都显得锋利而清晰。
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3. He had a keen eye for detail and was always able to spot errors in the work.
他对细节非常敏感，总能在工作中找到错误。