By searching a key word or taking a photo, people can immediately find out which group their waste belongs to.
通过搜索关键词或是拍照，人们立刻就能知道该垃圾属于哪一类。
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The key to this photograph is the tilted horizon, which exaggerates the feeling of vertigo and adds to the sense of disorientation and suspension that the photo creates.
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.