名词
中文翻译：水平
同义词：
['grade', 'rank', 'tier']
例句：
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1. The level of the riverhas increased significantly since the flood.
河流的水位自洪水后显著上升。
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2. The company's performance is at a high levelcompared to last year.
该公司的业绩与去年相比处于高水平。
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3. The new policy aims tolevel the playing field for all students.
新政策旨在为所有学生提供一个公平的学习环境。