The health of city dwellers needs to be protected from rapid and unplanned urbanization, as well as environmental, demographic and technological changes.

在这种快速发生且未经筹划的城市化面前，以及面对环境、人口和技术方面的变化，城市居民的健康需要得到保护。

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The data can be strung into time sequences to show the changes in human activity as a city cycles through the workday, the commute home, and nightlife.

这些数据可以按时间顺序进行串联，把人们的生活划分为：工作，回家，夜生活3个阶段，从而表现出他们在这个周期的活动改变。

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The colors of the city don't change because nature is not powerful enough to change them as she changes the color of woods.

城市的颜色也不会变化，因为自然的力量不足以像改变树林的颜色那样来改变城市。

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Over the past 20 years, the city has seen no major changes in the factors so often cited as the "root causes" of crime.

WSJ: Stopping Urban Crime Without Jail Time

Treaty change would require all member countries of the EU to agree, and Britain views this as an opportunity to win changes in other areas, such as protection for the single market and the City of London.

BBC: UK 'seeks working time rules deal' over treaty talks

The development corporation was set up five years ago, as city and state officials negotiated with Columbia for zoning changes and government land seizures of commercial property the university needed for its 25-year plan to stretch its campus into a 17-acre swath of land west of Broadway between 129th and 133rd streets.

WSJ: Pact's Benefits in Limbo