名词短语
中文翻译：来回运动
同义词：
['back and forth movement', 'back-and-forth movement']
例句：
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1.The team is to-and-fro between the two cities during the season.
该队在赛季期间往返于两个城市。
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2.The players are to-and-fro as they practice their skills.
球员们在练习技能时来回移动。
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3. The car was to-and-fro between the park and the city center.
汽车在公园和市中心之间来回穿梭。