pillion
 US /ˈpɪl.jən/
 UK /ˈpɪl.jən/

1. 
后座, 副座
a seat for a passenger behind the rider on a motorcycle or bicycle
:
• 
She rode on the pillion behind her brother.
她坐在哥哥身后的后座上。
• 
The motorcycle has a comfortable pillion for long rides.
这辆摩托车有一个舒适的后座,适合长途骑行。
1. 
载, 搭乘
to carry (a passenger) on a pillion
:
• 
He offered to pillion her home on his motorcycle.
他提出用摩托车载她回家。
• 
Can you pillion me to the next town?
你能载我去下一个城镇吗?