用作不及物动词
▲S+～(+A)
He cycled to school.他骑车上学。
The machine cycles automatically.这台机器自动循环运转。

［同义词］ n. circle, period, round
［词源］＜近代拉丁语cyclus(圆,圈,轮子)

The seasons of the year—spring, summer, autumn and winter—make a cycle.一年春夏秋冬四季构成一个循环。
My cycle is broken, so I shall have to walk.我的自行车坏了,因此我得步行。