tricycle

/ˈtraɪsɪk(ə)l/ 102
A tricycle is a bike with three wheels, two at the back and one at the front. Tricycles are ridden by young children. (幼儿骑的)三轮车

noun [专属名词][车辆] 三轮车

It was actually a tricycle with a petrol motor at the rear.
那实际上是一辆后面有汽油发动机的三轮车。

tri- 表示“三”tricycle 三轮脚踏车(tri+cycle 轮子)
tricycle 出现在下面的课文中
Lesson 94 Future champions tricycle 名词: 三轮车
单词造句: