形容词
中文翻译：多余的
同义词：
['superfluous', 'redundant', 'superfluous']
例句：
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1.The extra staff is a redundant expense.
额外的员工是不必要的开销。
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2.Redundant programs are often unnecessary and can be eliminated.
冗余的程序往往是不必要的，可以删除。
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3.The company's overstaffing has led to redundancy in some departments.
公司的过度人员配置导致某些部门出现了冗余现象。