数词
中文翻译：第五十一个
同义词：
['fiftieth', 'fifty-first例句：1. The first day of the new year is always exciting.（新年的第一天总是令人兴奋。）2. He was the first to arrive at the party.（他是第一个到达派对的人。）']
例句：
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1. The first day of the new year is always exciting.
新年的第一天总是令人兴奋。
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2. He was the first to arrive at the party.
他是第一个到达派对的人。
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3.She is the fifty-first student in her class.
她是她班上第五十一名学生。