on a bicycle的用法和样例:
例句
- A device for shifting gears on a bicycle by moving the chain between sprocket wheels of different sizes.
脱轨器,转撤器通过在不同大小的扣链齿轮间移动链条而转换自行车齿轮(换档)的装置
- This hill is too steep to ride up on a bicycle.
这山太陡了,骑自行车可上不去。
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