基本解释大城市的同根派生 英汉例句Thirdly, the paper makes qualitative and quantitative research onenvironmental bearing capacity of scenic-tourist site in the nearby suburb of bigcity from time-space viewpoint. 再次,本文从时空角度上对大城市近郊风景旅游区的旅游容量进行了定性和定量的分析。