但卫生部门并不能制定政策或颁布和实施旨在创造有益健康环境的法律，而只有创造有益健康的环境，才能便于人们作出健康的选择。
But the health sector cannot formulate the policies or enact and enforce the legislation that creates a health-promoting environment, an environment that makes healthy choices the easy choices.
本照片故事阐述与城市化有关的主要卫生问题以及世卫组织为创建安全可靠和有益健康的城市环境提出的五项行动建议。
This photo essay highlights some of the key health issues related to urbanization and five WHO-recommended, calls to action to build a healthy and safe urban environment.
简言之，城市生活环境不如自然生活环境有益健康，这恰恰就是为什么研究者们认为自然更好。
In short, urban environments tend to be a lot less restorative than natural ones and this is precisely why researchers think that nature is so beneficial.
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