urbanization [ˌɜ:bənaɪ'zeɪʃn]

例句:

• Equally important to urbanization, the nation's population was increasing.
  城市化的另一重要因素是全国人口的不断增加.
  
• Urbanization will become increasingly important in the future.
  城市化将来将变得越来越重要.
  
• The urbanization level increased from 19.39 percent in 1980 to 28.85 percent in 1995.
  城市化水平由1980年的19.39%提高到1995年的28.85%.
  
• At the same time, urbanization is shrinking the amount of arable land available in China.
  来自WSJ