1. 乘客；旅客
    A passenger in a vehicle such as a bus, boat, or plane is a person who is travelling in it, but who is not driving it or working on it.

passenger的意思

    e.g. Mr Fullemann was a passenger in the car when it crashed.
           出车祸时，福勒曼先生正在那辆车上。
    e.g. ...a flight from Milan with more than forty passengers on board.
           搭载着四十多名乘客的米兰来的航班

2. 乘客的；旅客的
    Passenger is used to describe something that is designed for passengers, rather than for drivers or goods.

passenger是什么意思

    e.g. I sat in the passenger seat.
           我坐在乘客座位上。
    e.g. ...a passenger train.
           客运列车