大路上出現了一輛自行車。
A bicycle came into sight on the main road.
那輛車橫沖過馬路，撞上了一個騎自行車的人。
The vehicle careered across the road and hit a cyclist.
在倫敦騎自行車，你可得有膽量。
You need strong nerves to ride a bike in London.
他給自己的自行車上了油，給輪胎充了氣。
He oiled his bike and pumped up the tyres.
男孩子們騎著自行車在街上兜風。
The boys were riding their bikes around the streets.
自行車組織正在為全國自行車周活動作準備。
Cycle organizations are gearing up for National Bike Week.
昨天騎了那趟自行車，我覺得渾身酸痛。
I'm really stiff after that bike ride yesterday.