动词
中文翻译：保持健康
同义词：
['stay well', 'keep up', 'maintain good health']
例句：
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1. It's important to keep well-hydrated during exercise.
在锻炼期间保持水分充足很重要。
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2. She kept well throughout the long flight.
她在长时间的飞行中保持得很好。
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3.The doctor advised him to keep well by following a balanced diet.
医生建议他通过均衡饮食来保持健康。