xueairu_520
幼苗
共回答了20个问题采纳率:90% 举报
There are many advantages to riding a bicycle.First,using a bicycle can greatly help reduce the air pollution in many big cities.Apart from this,people can improve their health and muscle by riding a bicycle.The future of bicycle will be bright.In some European countries,city governments have arranged pedestrians to use “public bicycles” to travel round the city center free of charge.
1年前
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