tandem bicycle

1. The results indicated that the social-economic background of users who chose single bicycle and tandem bicycle are significantly different.
   研究结果显示，选择不同自行车类型之游客其社经背景及参与行为有显著差异；
2. I've never ridden a tandem bicycle before.
   我从来没骑过双人自行车。
3. Ride tandem on a bicycle built for two; riding horses down the path in tandem.
   一前一后骑着一辆双人自行车；沿着小路赶着排成纵行的马匹。
4. We could rent a tandem bicycle. It's not expensive at all.
   我们可以租一辆双人自行车，一点儿也不贵。

noun

1. a bicycle with two sets of pedals and two seats

   Synonym:    bicycle-built-for-twotandem