名词
中文翻译：Unknown
同义词：
['unreliable', 'unsatisfactory', 'undesirable']
例句：
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1. The manager was accused of being an undeserver by his employees.
经理被指控是员工们认为不称职的人。
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2. The product is unsatisfactory due to its poor quality.
由于质量不佳，该产品是不令人满意的。
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3. The company's reputation is undesirable because of its poor customer service.
该公司因服务质量差而声誉不佳。