名词
中文翻译：等级
同义词：
['grade', 'category', 'class']
例句：
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1. The ranking of the teams is based on their performance in the tournament.
各队排名是根据他们在锦标赛中的表现而定的。
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2. The ranking of the top performers was announced at the end of the competition.
在比赛结束时宣布了顶级选手的排名。
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3. The rankings are based on a complex formula that takes into account various factors.
排名是基于一个复杂的公式，该公式考虑了各种因素。