科研之友
微信
新浪微博
Facebook
分享链接
摘要
<正>As the last Thanksgiving leftover is consumed and the calendar flips to December,the unmistakable red-and-green flood of the Christmas season comes into view.The two colors fill malls and living rooms around the world,and adorn nearly every decoration,strand of lights,and ugly sweaters on store shelves.The Christmas season is inextricably connected to this color combination-but why?
