动词短语
中文翻译：保持良好状态
同义词：
['keep up', 'maintain', 'preserve']
例句：
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1. Theteam needs to keep up with the paceof the competition.
队伍需要跟上比赛的步伐。
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2.The old house needs to be maintained properlyto ensure its safety.
这座老房子需要得到妥善维护，以确保其安全。
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3. Thefood was preserved well, and it tasted delicious.
食物保存得很好，味道很美味。