对话：what can big cities do to improve the air qulity?

A: good weather today

B: that the poor foreigner, I am afraid that the Olympic Games in Beijing can not

A: What? Beijing's air quality has greatly improved

B: But is not up to much, ah, you do not feel it?

A: urban air quality is not a day for two days to do a good thing

B: that is why you have a better idea of it?

A: This is a very complex and not easy

B: That you can talk about simple

A: Oh, I have to think of the people and government departments coordinate with each other, to reduce air pollution, is a long time.

B: that the sense of, and it?

A: planting trees to absorb more pollution, but also beautify the environment.

B: do not you know it's really more

A: Of course it, HOHO

B: Hey! You can say one thing and do another