动词短语
中文翻译：背在背上
同义词：
["ride on someone'sback", 'ride with someone', "ride insomeone's car"]
例句：
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1. She decided to piggyback onher friend's car to get tothe party.
她决定搭便车去参加聚会。
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2. The old man rode his horsepiggyback to school every day.
这位老人每天骑他的马背上学。
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3. Theydecided to ride in a bus together,sharing the cost and the journey.
他们决定一起乘坐公交车，分担费用和旅程。