1. Discuss the reasons why individuals might opt for public transport, such as cost-effectiveness, environmental concerns, convenience, or lack of alternatives. 2. You can also mention personal or observed experiences that highlight these reasons.

1. 讨论个人选择公共交通的原因，例如成本效益，环保关注，便利性或缺乏其他选择。 2. 您还可以提及个人或观察到的经验，以突出这些原因。