中国科学家发现了翼龙的迷人进化史，翼龙是第一种飞行脊椎动物，研究人员揭示，翼龙经历了1.15亿年的繁盛期，之后进入了6500万年的逐渐衰退期

Language of borrowers 从“舶来”到“输出”的英语进化史 　　Throughout much of history, the English language has borrowed words from other languages to become the intermixed language that we know today. Yet