a traveller on a public or private conveyance other than the driver, pilot, or crew 乘客,旅客 ■a member of a team or group who does far less effective work than the other members (团队中的)滥竽充数人员,冗余人员
语源
Middle English: from the Old French adjective passager 'passing, transitory', used as a noun, from passage (see passage)