请用5个句子左右来写自行车的有点与缺点
好处：We can exercise by riding bikes.我们可以骑自行车锻炼身体。It is good for our health.这对我们的健康有好处。It is a green transportation.这是一种绿色交通。Its helpful to protect our environment.这有助于保护我们的环境。We can also avoid the traffic jam.我们还可以避免交通堵塞。
好处：We can exercise by riding bikes.我们可以骑自行车锻炼身体。It is good for our health.这对我们的健康有好处。It is a green transportation.这是一种绿色交通。Its helpful to protect our environment.这有助于保护我们的环境。We can also avoid the traffic jam.我们还可以避免交通堵塞。
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