红帽子,宪兵,红弱鸟
Redcap \Red"cap`\, n. 1. (Zo["o]l) The European goldfinch. 2. A specter having long teeth, popularly supposed to haunt old castles in Scotland. [Scot.] --Jamieson.
redcap n 1: a member of the military police in Britain 2: a porter who helps passengers with their baggage at a railroad station