騎自行車用英語的表示方法：ride on a bicycle；bicycle riding；ride a bike；by bike；ride on a bicycle。
騎（自行車，馬，三輪腳踏車）：ride a bike；ride a horse；ride a tricycle騎自行車，騎馬，騎三輪腳踏車，這三個短語裏的ride都是騎的意思。
相關短語有：騎着自行車：be on the bike，bike riding，rides his bicycle。我騎着自行車：I ride a bike。騎着自行車走：ride on a bicycle。
雙語例句：
1、那輛車橫衝過馬路，撞上了一個騎自行車的人。The vehicle careered across the road and hit a cyclist.
2、在倫敦騎自行車，你可得有膽量。You need strong nerves to ride a bike in London.
3、在城鎮騎自行車常常比開車更方便。A bicycle is often more convenient than a car in towns.
4、我父親教會了我騎自行車。My father taught me how to ride a bike.
5、我騎自行車下山到中途剎車失靈了。The brakes on my bike failed half way down the hill.
