1. In the third largest city in the region, there are no magnificent high-rise buildings and modern appearance in the city construction, even the LED decoration has not been seen. 2. Seeing that the body and wheels of every car are as clean as new, I think that the local road surface is so clean by scrubbing every day. 3. Building construction must be well enclosed, safe and dustproof, and residential areas should also be sound-proof. 4. In the past few days, I haven't heard a car horn once or seen a traffic jam on the street. Most of them are local brand cars, with small displacement and more body size smaller than those in China. Taxis are all more than ten years or bright as new.