动词短语
中文翻译：来回旅行
同义词：
['circling', 'roundabout']
例句：
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1.We decided to take a round-trip flight to visit our relatives in another city.
我们决定乘坐往返航班去另一个城市的亲戚家。
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2. The train was so crowded that passengers had to round-trip multiple times.
火车非常拥挤，乘客不得不多次往返。
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3.She spent the weekend round-tripping between her home and work.
她周末在家住和工作之间来回奔波。