cycling
騎腳踏車兜風,騎腳踏車消遣
cycling
循環 週期
Cy·cle v. i. [imp. & p. p. Cycled. p. pr. & vb. n. Cycling ]
1. To pass through a cycle2 of changes; to recur in cycles.
2. To ride a bicycle, tricycle, or other form of cycle.
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Cy·cling n. The act, art, or practice, of riding a cycle, esp. a bicycle or tricycle.
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cycling
n : the sport of traveling on a bicycle or motorcycle