Riding a bicycle is a good physical exercise. People often travel by bicycles on holidays.

骑自行车可以得到锻炼，假日里人们经常骑车去旅行。

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Riding a bicycle is a good physical exercise. People often travel by bicycles on holidays.

骑自行车可以得到锻炼，假日里人们经常骑车去旅行。

youdao