pillion [ˈpɪljən]

例句:

• 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。
  
• Riding pillion is another boy, brandishing a machinegun.
  来自THETIMES
• She rode pillion on her son's motor bike.
  她坐在儿子摩托车的后座上。
  
• He drove his motorbike, with me riding pillion.
  他开摩托车, 我坐在后座上.
  
• Samantha Pillion, an incoming freshman at Wellesley College, agrees that Facebook friendships aren't necessarily built to last.
  来自CNN