According to one estimate, there could be as many as thirty million species of animals living in the sea, most still undiscovered. 据一项估计,海洋里可能生活着多达3000万种动物,大多数尚未被发现。 The first hint of how ab

发表于:2018-12-07 / 阅读(21) / 评论(0) 分类 万物简史

Dinosaur Death Leads to Rise of Fish 恐龙死亡导致鱼类增多 Tens of millions of years ago, an asteroid hit what is now the Yucatan Peninsula of Mexico. The event led to a global mass extinction that has been linked to the end of the dinosaurs

发表于:2018-12-08 / 阅读(22) / 评论(0) 分类 2015年VOA慢速英语(七)月

Climate change 气候变化 Good news at last? 终于来了好消息? The climate may not be as sensitive to carbon dioxide as previously believed 气候对二氧化碳的敏感性可能低于先前的预期 CLIMATE science is famously complicated,

发表于:2019-01-17 / 阅读(42) / 评论(0) 分类 经济学人综合

Only about one bone in a billion, it is thought, ever becomes fossilized. 据认为,在10亿根骨头当中,只有大约l根能变成化石。 If that is so, it means that the complete fossil legacy of all the Americans alive todaythat's 270 mill

发表于:2019-02-17 / 阅读(21) / 评论(0) 分类 万物简史

We are all the result of a single genetic trick handed down from generation to generation nearly four billion years, 我们都是同一遗传戏法的结果。那种戏法一代一代地传下来,经历了差不多40亿年, to such an extent that

发表于:2019-02-17 / 阅读(39) / 评论(0) 分类 万物简史

In the 1830s, the British naturalist Edward Forbes surveyed ocean beds throughout the Atlantic and Mediterranean 19世纪30年代,英国博物学家爱德华福布斯勘察了大西佯和地中海各处的海床, and declared that there was no li

发表于:2019-02-25 / 阅读(73) / 评论(0) 分类 万物简史