动词短语
中文翻译：保持
同义词：
['stay', 'maintain', 'preserve']
例句：
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1.I need to keep my promise to finish the project on time.
我需要兑现承诺，按时完成这个项目。
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2.The team needs to keep in touch with each other regularly.
团队需要定期保持联系。
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3.She kept her secret well, so no one found out about it.
她保守秘密得很好，所以没有人发现。