Excessively dense urban layout is not only easy to produce heat island effect, but also does not meet the requirements of ecological aesthetics. 
urban construction should open the layout as far as possible, reasonably interval the city groups, so that the city looks smooth and orderly, not crowded, not cluttered.
The heavy burden of schoolwork in primary and secondary schools is a big problem affecting the happy and healthy growth of primary and secondary school students. Therefore, it is necessary to reduce the burden of schoolwork to the end and eliminate blind areas such as online training