a vehicle composed of two wheels held in a frame one behind the other, propelled by pedals and steered with handlebars attached to the front wheel
自行车,脚踏车。
ride a bicycle in a particular direction
骑自行车
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they had spent the holidays bicycling around the beautiful Devonshire countryside. 他们假期在德文郡乡村四处骑车旅游。
"mid 19th cent.: from