单词dispatch rider
na.: 骑兵[摩托]通讯员网络: 通信员；骑摩托车或骑马的通信员；骑机车或骑马之通讯员
（骑摩托车的）通信员，信使:
a person whose job is to carry messages or packages by motorcycle
骑兵[摩托]通讯员
n.couriermessengerdeliverer