the sport or activity of riding a bicycle. Cycle racing has three main forms: road racing (typically over long distances), pursuit (on an oval track), and cyclo-cross (over rough, open country).
自行车运动,骑自行车(自行车比赛有三种主要方式: 公路自行车赛,多为长距离; 自行车追逐赛和自行车越野赛)。
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water cycle 水循环
真题例句: