秋天是一年中最美的季节，因为有绚丽多彩的树叶和金灿灿的落叶铺就的“地毯”。新研究指出，今后你看到这一秋日美景的时间要提前了，因为气候变暖将让秋天的树叶提早变色和

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Death Valley Reaches Highest Temperature in 100 Years美国死亡谷录得自1913年以来最高温度The National Weather Service's (NWS) measuring system recorded a te

Did The Earth Move For You? Eleven-year-old Angela was stricken with a debilitating disease involving her nervous system. She was unable to walk and her movement was restricted in other ways as well. The doctors did not hold out much hope