The city horizon contour line is matter reflection of the city life fact and the different city has the different horizon contour line that reflected the city unique disposition.
城市天际轮廓线是城市生活事实的物质反映，不同的城市拥有不同的天际轮廓线，它反映了城市的独特性格。
2
It is caused by the reflection of sunlight from ice crystals and is most often observed at sunrise or sunset when the sun is low to the horizon.
这是由地球大气层顶部冰晶体折射太阳光而形成的，观测时间一般为日出或日落时，即太阳接近地面时。
3
We can see, the fusion or reflection of the horizon of expectations ever had important impact on the formation or changes on the creation, acceptance, modify of "Border Town".