名詞 hitchhiker:

1. a person who travels by getting free rides from passing vehicles

1. The driver stopped to pick up a hitchhiker.
   司機停下來讓一個搭車人上了車。
2. He picked up two hitchhiker at the entrance to the motorway.
   在高速公路入口，他讓兩個免費搭車旅行者搭了他的車。
3. A hitchhiker flagged me down on the highway.
   公路上一個想搭乘便車的人揮手叫我停車。