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