动词短语
中文翻译：保持某人的忠诚
同义词：
["keep someone's interest", "keep someone's attention", "earn someone's respect"]
例句：
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1.She earned her keep by doing all the housework herself.
她通过自己做所有的家务活来证明自己的价值。
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2. The boss promised to keep his employees happy and satisfied.
老板承诺要让他的员工快乐和满意。
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3.He earned his keep by providing excellent service to customers.
他通过为顾客提供优质的服务来证明自己的价值。