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华盛顿大学研究人员发表在《柳叶刀》的研究报告预测，全球人口将在2064年达到顶峰，约为97亿，2100年将降至约88亿。研究人员称，这将是第一次由生育率下降而导致的全球人口下降。Photo provided to China DailyAccording to a new study

导读:美国科罗拉多州一位5岁男童在自家前院玩耍时，遭到一头美洲狮攻击，孩子母亲撬开狮子嘴巴救出了儿子。A woman in Colorado has saved her five-year-old son by prying open a mountain lions mouth after the animal attacked the

BEIJING, March 8 (Xinhua) -- China's exports in yuan-denominated terms slumped 20.6 percent year on year to 821.8 billion yuan (126.3 billion U.S. dollars ) in February while imports dropped 8 percent to 612.3 billio