talk about the advantages and disadvantages of travelling by bus or by bike

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talk about the advantages and disadvantages of travelling by bus or by bike

by bus:
advantages:save energy; fast; suitable for long trip; contain more people
disadvantages:pollution,too stuffy and crowded
by bike:
advantages:save money; a kind of exercise; green vehicle; environmental-friendly; interesting disadvantages:tired,can't ride a bike in a bad weather

Travelling by bus will make air pollution , but it's fast.
Travelling by bike is simple and will not make any pollution, but it's slow.

讲讲有关于去旅游骑自行车的优点和缺点。