【中文版】

房价之所以贵，主要是由供求关系和地域因素所决定的。首先，随着城市化进程的加速和人口的不断增长，房屋需求量也在逐年增加，而房屋供应量却相对不足，这就导致了房价的上涨。其次，地域因素也对房价产生了重要影响。一些城市因为经济发展、就业机会、教育资源等方面的优势，吸引了大量人口涌入，这些城市的房价也就随之水涨船高。

此外，政策因素也对房价产生了不小的影响。政府的调控政策会直接影响房价的走势。例如，当政府采取紧缩政策时，房价就会下跌；而当政府采取宽松政策时，房价就会上涨。同时，一些政策也会对房屋的售价产生直接影响，例如房产税等。

最后，投资和炒作也是导致房价上涨的重要原因。一些人将房产视为投资品，认为投资房产可以获取高回报，因此愿意花费更高的价格购买房产。此外，一些炒房团和开发商也会通过哄抬房价来获取更高的利润。

综上所述，房价之所以贵是由多种因素共同作用所导致的。这些因素包括供求关系、地域因素、政策因素以及投资和炒作等。因此，要想真正解决房价高的问题，需要从多个方面入手，采取综合措施。

【英文版】

The high price of housing is mainly determined by supply and demand relationship and geographical factors. Firstly, with the acceleration of urbanization and the continuous growth of the population, the demand for housing is increasing year by year, while the supply of housing is relatively insufficient, leading to the rise of housing prices. Secondly, geographical factors also have a significant impact on housing prices. Some cities have attracted a large number of people to enter due to the advantages of economic development, employment opportunities, educational resources, etc. The housing prices in these cities will also rise with the increase of demand.

In addition, policy factors also have a considerable impact on housing prices. Government regulation policies will directly affect the trend of housing prices. For example, when the government adopts tight policies, housing prices will fall; while when the government adopts loose policies, housing prices will rise. At the same time, some policies will also directly affect the selling price of houses, such as real estate tax.

Finally, investment and speculation are also important reasons for the rise of housing prices. Some people regard real estate as an investment product and are willing to pay higher prices for investment in real estate. In addition, some real estate groups and developers will also seek higher profits by哄抬housing prices.

In summary, the high price of housing is determined by multiple factors. These factors include supply and demand relationship, geographical factors, policy factors, and investment and speculation. Therefore, to truly solve the problem of high housing prices, we need to take comprehensive measures from multiple aspects.