pillion

noun

1. 摩托车后座
   a seat for a passenger behind the driver of a motorcycle
   1. a pillion passenger/seat
      摩托车后座乘客；摩托车后座

1. ADV 在（摩托车或自行车的）后座上
   If someone rides pillion on a motorcycle or bicycle, they sit behind the person who is controlling it.
   1. She rode pillion on her son's motor bike.
      她坐在儿子摩托车的后座上。
2. N-COUNT （摩托车的）后座
   On a motorcycle, the pillion is the seat or part behind the rider.
   1. As a learner rider you must not carry a pillion passenger.
      作为摩托车初学者，切勿后座载人。

1. She rode pillion on her son's motor bike.
   她坐在儿子摩托车的后座上。
2. As a learner rider you must not carry a pillion passenger.
   作为摩托车初学者，切勿后座载人。
3. He drove his motorbike, with me riding pillion.
   他开摩托车，我坐在后座上。
4. A pillion passenger who is inexperienced or nervous and behaves or moves the wrong way or suddenly is dangerous.
   电单车后座的乘客如欠缺经验或神经紧张，或不适当或突然的移动，都十分危险。

noun

1. a seat behind the rider of a horse or motorbike etc.