复数： tricycles

A worker hauls phone casings on a tricycle .

一个工人用三轮车运载电话外壳。

A child 's jaunt on a tricycle might become quite exciting .

骑三轮车来远足的孩子见到此景或许会异常兴奋。

9 / 15 Yangon , myanmar : a man on a tricycle transports residents after a downpour

9/15缅甸.仰光：暴雨之后，一名男子骑着三轮车运送居民。

Media artist nicholas hanna built a tricycle that writes chinese characters on the ground as it moves .

媒体艺术家尼古拉斯汉纳（nicholashanna）造了辆三轮车，这车一边走，可以一边在地上写出中国字来。

It includes a tricycle with square wheels of different sizes that visitors can ride smoothly around a circular path ridged like a flower 's petals .

它包括一辆装有不同尺寸方形轮子的三轮车，参观者却骑着它可以很平稳很轻松地沿着一条类似花瓣突起的圆形轨道行进。