4. When are vehicles most crowded?
4. 汽车什么时间最拥堵？
That would definitely be the rush hour. Say, from seven to nine in the morning and from five to seven in the evening. Traffic jams are bloody murder everywhere when it comes to rush hour: It can be seen by millions of vehicles being screwed up everywhere.
那肯定在交通高峰时间。比如早晨7点到9点，晚上5点到7点。在交通高峰时间，交通堵塞绝对是到处的血腥杀手。成千上万的汽车被挤得到处都是。
5. What are the advantages and disadvantages of the bus?
5. 公交车的利弊是什么？
The bus is punctual, cheap, and convenient. But it is not punctual any more when it comes to rush hour. Traffic jam caused by millions of cars in rush hour can totally ruin its reputation?
公交车很准时，便宜而且便捷。但是到了交通高峰期时就不再那么便捷了。成千上万的小汽车引起的交通堵塞完全破坏了公交车守时的名誉。
6. How would you improve traffic in cities?
6. 你将如何改善城市中的交通问题？
Speaking of traffic,you know,as the saying goes："Roma wasn't built in a day." I think this is not like something can be improved in couple of days and by couple of guys. So I think it is the high time that both government and individuals did something. From government perspective, a series of systematic and reasonable regulations and rules should be implemented based on the currently unsatisfactory situation. As far as individuals are concerned, they should strictly obey all the relevant regulations and rules so that I can set a very good example to other citizens.
说到交通，就像俗话说的“罗马不是一天建成的”。我想这不是几天或者几个人可以解决的问题。到了政府和个人应该做点什么事的时候了。从政府角度，针对目前不尽人意的交通状况，应当执行一系列系统合理的规章制度。就我个人而言，我会严格遵守相关的法规制度，为其他市民做榜样。
7. How could you improve traffic in the cities?
7. 你将如何改善城市中的交通状况？
Well,I think as the concrete solutions,although it might sound like a world that is too alien to me, maybe we should consult municipal government officers about how to get it done effectively and efficiently! And I am afraid this is not really my field.
我想，就目前的现实状况，由于我属于这个领域的局外人，或许可以咨询市政官员如何有效、迅速的解决。我想这确实不是我所涉及领域的问题。