用英文写出骑自行车的好处和坏处的句子 好处5句 坏处3句

好处1. Riding bikes is helpful to build a healthy body.

2. It's good to enviornment because it does not cause air pollution.

3. It saves time in doing exercises.

4. It trains one's ability of keeping balance.

5. It helps to build muscles.

坏处

1. It is affected by bad weathers.

2. It is not as convenient as riding a car.

3. Too much driving may expose one in the sun for too long.