n.自行车；脚踏车；摩托车

vi.骑自行车

I've decided to buy that bike. 我已决定购买那辆自行车。

The lost bike was discovered at the bus stop. 丢了的脚踏车在公车站找到了。

John's parents vetoed his plan to buy a motor bike. 约翰的父母不同意他买摩托车。

This morning on my way to school, I saw a motorbike hit a man on a bike. 今天上班路上看到摩托车撞了一个骑车人。

Our boss loves to bike for an excursion. 我们老板喜欢骑自行车去郊游。