We are not talking about air pollution. Many years ago, we had no sun screen in China, and we were not sun-burned.
为什么美国的太阳比中国的厉害?
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That's why we need to save the ozone layer...
-borisg-
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05/19/2017 postreply
14:03:15
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雾霾挡住了紫外线。总算找到一个雾霾的好处了。
-篱笆08-
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05/19/2017 postreply
14:03:16
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打伞呀,户外运动少呀,夏天都在阴凉地呆着呀
-mama2011-
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05/19/2017 postreply
14:03:25
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西雅图的人也晒得厉害?加州的要和昆明的比
-cutedolphin-
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05/19/2017 postreply
14:04:18