L a motorcycle rider is any person riding on a motorcycle or in a sidecar or trailer attached to such a vehicle.

所谓摩托车骑士是指任何骑乘于摩托车、或其所附边车、拖车上的人。

youdao

You are talking about my motorcycle with sidecar? Yes that is Changjiang 750. It is a legend!

你是说我的挎斗摩托车？是啊，那是长江750，一代传奇啊！

youdao

Travellers find themselves squished into a partially enclosed motorcycle sidecar that is barely big enough for one person.

BBC: The Philippines�� secret sanctuary

After his discharge, he bought a Harley-Davidson motorcycle with a sidecar and drove to Mexico City.

FORBES: Exploitation Or Honesty: Should Filmmaker Use Her Brother's iPhone Video Of His Own Madness?