当然，我们的读者也充分注意到了这个城市令人印象深刻的自行车普及率——大约40%的通勤是由自行车来完成的。
Of course, our readers are well aware of the impressive cycling rates in the city-approximately 40% of all commutes are conducted by bike.
而作为美国高自行车普及率城市之一的旧金山，其所面临的挑战则是如何在美国现行标准下，尽可能地推广自行车的使用范围。
In San Francisco, already one of America's biking cities, the challenge is to push, by American standards, the boundaries of the possible.
在中国，自行车是一种传统的交通工具，这种环保的交通出行方式现在仍然非常普及。
The bicycle is the traditional form of transport in China and this sustainable way of travelling is still one of the most popular.
在中国，自行车是一种传统的交通工具，这种环保的交通出行方式现在仍然非常普及。
The bicycle is the traditional form of transport in China and this sustainable way of travelling is still one of the most popular.
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