1
- a bicycle with seats and pedals for two riders, one behind the other串座双人自行车。
1.1
- a carriage driven by two animals harnessed one in front of the other纵列二马拉的马车。
1.2
- a group of two people or machines working together（一前一后的）串联工作组（或机器）。
1
- 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。
1.1
- alongside each other; together协同地; 一起地。
- having two things arranged one in front of the other一前一后的, 纵列的：
a tandem trailer.
纵列挂车。
短语
in tandem
1
- alongside each other协同地。
1.1
- one behind another一前一后地。
词源
late 18th cent.: humorously from Latin， literally at length.