a bicycle with seats and pedals for two riders, one behind the other 串座双人自行车 ■a carriage driven by two animals harnessed one in front of the other 纵列二马拉的双轮马车 ■a group of two people or machines working together 串联工作人(或机器)
adverb
with two or more horses harnessed one behind another 二马(或多马)纵列地 I rode tandem to Paris. 我驾纵列马车去巴黎。 ■alongside each other; together 协同地;一起地
常用词组 in tandem
alongside each other 协同的 ■one behind another 一前一后地
语源
late 18th cent.: humorously from Latin, literally at length