动词短语
中文翻译：保持联系
同义词：
['maintain contact', 'keep in touch', 'maintain communication']
例句：
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1. We needto keep a close and regular relay of information between the two countries.
我们需要两国之间保持密切且定期的信息交流。
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2.The team leader kept relaying instructions to the soldiers during the battle.
在战斗中，队长不断向士兵传达指示。
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3. After the earthquake, we were kept relay by the search and rescue teams.
地震后，我们被搜救队持续地救援。