名词
中文翻译：极限
同义词：
['boundary', 'limit', 'constraint']
例句：
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1. The scientist discovered a new limit to the speed of light.
科学家发现了光速的新极限。
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2. The project aims to exceed the economic limit of the region.
该项目旨在超越该地区的经济极限。
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3. The team set a new record for the distance covered in a single day.
该团队创下了单日行走距离的新记录。