常見(jiàn)例句雙語(yǔ)例句Secondly, on the base of urban development and urban theory, studies urban, urban system and economic development.其次，以城市發(fā)展理論和城市體系結(jié)構(gòu)理論為基礎(chǔ)，研究了城市，城市體系與經(jīng)濟(jì)發(fā)展的關(guān)系。 返回 urban economic base theory