名词
中文翻译：长老
同义词：
['senior', 'senior citizen', 'elder']
例句：
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1.The elder brother is the one who usually takes care of us.
哥哥通常是照顾我们的人。
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2.Elderly people often need more help than younger ones.
老年人通常需要比年轻人更多的帮助。
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3.Many senior citizens are proud to be part of their community.
许多老年人为能成为社区的一部分而感到自豪。