动词
中文翻译：保持
同义词：
['hold', 'preserve', 'maintain', 'keep']
例句：
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1. The old house is kept in good condition by the caretaker.
老房子由看护人精心维护。
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2. She keeps a diary to record her daily activities.
她记日记来记录她的日常生活。
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3. Keep your eyes open for any potential dangers.
小心，留意任何潜在的危险。