溫哥華那麽倍太陽也毒?
所有跟帖:
• 靠地球兩極越近,臭氧層越薄,太陽裏的紫外線越強。而且夏天的太陽直射北半球。 -lessismore- ♀ (81 bytes) () 11/06/2012 postreply 12:59:06
• 靠地球兩極越近,臭氧層越薄,太陽裏的紫外線越強。而且夏天的太陽直射北半球。 -lessismore- ♀ (81 bytes) () 11/06/2012 postreply 12:59:06
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