名词
中文翻译：水平
同义词：
['grade', 'rank', 'tier']
例句：
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1. The student needs to improve his level of English.
学生需要提高他的英语水平。
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2. The company's performance has been on a steady upward trend.
公司的绩效一直在稳步上升。
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3. The new policy aims to level the playing field for all students.
新政策旨在为所有学生提供一个公平的竞争环境。