政策制定者还应该讨论自动驾驶汽车如何帮助减少交通堵塞、减少排放，并提供更方便的出行选择。
Policymakers also should be talking about how self-driving vehicles can help reduce traffic jams, cut emissions and offer more convenient mobility options.
发达的交通系统有助于减少交通堵塞。
A 我想减少交通堵塞和污染的最好办法是增加公共交通设施。
A I guess the best way to reduce traffic and pollution is to add more public transport forcilities.
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