第三次浪潮大约发生在一万或九千年前，见证了东北亚的祖先群体向现代爱斯基摩人和阿留申人的迁移。
The third wave, perhaps 10,000 or 9,000 years ago, saw the migration from North-east Asia of groups ancestral to the modern Eskimo and Aleut.
可能在人口流动性方面最具说服力的标志是，公元前3000年，在这片广袤的土地上大部分牧民讲的相关语言，现代印欧语系就从中发展而来。
Perhaps the most striking sign of mobility is the fact that by the third millennium B.C., most pastoralists in this huge region spoke related languages ancestral to the modern Indo-European languages.
一千年前在美国西南部，现代祖尼人和霍皮人的祖先在他们统治的土地上修建了复杂的道路和建筑，后来由于一些不为人所知的原因，又遗弃了这些复杂的道路和建筑。
The ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest.
年轻人和老年人在一个关键问题上达成了一致：两个群体中的绝大多数人都认为，与前几代人相比，现代年轻人开启新生活更加困难。
Young and old converge on one key point: Overwhelming majorities of both groups said they believe it is harder for young people today to get started in life than it was for earlier generations.
现在的北美大陆和欧洲大陆大约在40亿年前是连接在一起的，在那时，加勒多尼亚山脉与现代的喜马拉雅山脉一样雄伟。
About 400 million years ago, when the present-day continents of North America and Europe were joined, the Caledonian mountain chain was the same size as the modern Himalayas.
许多现代汉字与2000年前的汉字相似。
Many modern Chinese characters are similar to those from 2,000 years ago.
现代男人与几世纪前相比变化不大。
前现代时期充满活力的城邦制将成为主流，这些城邦实行极其谨慎的财政政策。
The pre-modernist robust model of city-states and statelings will prevail, with obsessive fiscal prudence.
几星期前我拜访了北极附近的吕勒奥，得以对现代的瑞典萨米人有所了解。
I got a brief glimpse of the situation of Sweden's modern Sami when I visited subarctic town of lulea a few weeks ago.
他死于公元前323年，未满33岁，在巴比伦死于疟疾，也就是现代伊拉克。
He died in 323, when he was not yet 33-years-old, and he died in Babylon of a fever, that is, of course, modern day Iraq.
这项发现提供了更确切的证据，指出21世纪前十年是有现代仪器记录以来最热的十年。
The find adds to multiple lines of evidence showing that the 2000s were the warmest decade in the modern instrumental record.
盐铺就了现代文明的道路；早在四千年前，它就被用来为蔬菜和肉类保鲜。
Salt paved the way for modern civilisation; it was used to preserve vegetables and meat as long as 4,000 years ago.
盐铺就了现代文明的道路；早在四千年前，它就被用来为蔬菜和肉类保鲜。
Salt paved the way for modern civilisation; it was used to preserve vegetables and meat as long as 4, 000 years ago.
作为一种检测，研究人员在一些繁殖茂盛的斑点处对DNA测序(支原体基因组这种东西现代测序技术可以在早晨喝完咖啡前搞定)。
As a check, the researchers sequenced the DNA from some of the flourishing spots (a Mycoplasma genome is the sort of thing a modern sequencing set-up can knock off before its morning coffee).
得益于现代医学和良好的公共卫生，现代女性可以在更年期后活得跟更年期前一样长。然而，她们的卵巢并未与寿命一同增长。
Thanks to modern medicine and better public health, women now live nearly as long after the menopause as before, yet their ovaries haven’t caught up with the jump in longevity.
在向资源添加实现代码前，创建一些新的类来提供足够实现以测试函数。
Before adding implementation code to the resource, create a few classes that provide enough implementation to test the functions.
得益于现代医学和良好的公共卫生，现代女性可以在更年期后活得跟更年期前一样长。然而，她们的卵巢并未与寿命一同增长。
Thanks to modern medicine and better public health, women now live nearly as long after the menopause as before, yet their ovaries haven't caught up with the jump in longevity.
因为是我们在200年前创造了现代铁路系统，可问题是我们并没有在此基础上取得多少新进展。
We basically invented the modern rail system nearly 200 years ago. The problem is that we haven't really advanced much past that.
我可以想象你检视“古”春宫的场景，要避免任何现代社会的痕迹——或者甚至是一战前的——如果一出现这类痕迹，马上扼杀了兴致。
I imagine you inspecting “vintage” erotica for any hints of the modern world — or even anything post-World War I — that, if found, instantly kill the fantasy.
几十年前，爱尔兰对现代社会培养神甫这一观点满不在乎：教堂都挤满了人。
A couple of decades ago Ireland defied the idea that modern societies grow secular: churches were packed.
无阶级论也许是现代而时髦的——但是，出生决定命运的现象比50年前更明显了。
Classlessness may be modern and hip - yet birth determines destiny more certainly than 50 years ago.
公司的现代飞思三门小型客车，一年前还未开始销售，也为公司带来了收益。
The company's quirky Veloster three-door small car, not on sale a year ago, contributed to the gains.
美国在五十年前就已经研发出了现代太阳能电池。
The United States invented the modern solar cell over a half century ago.
比如在墨西哥的现代史上，一个很明显的标志就是15年前使用的教科书，里面的反美情绪就相对轻了一些。
In the modern history of Mexico, for example, a big landmark was the introduction, 15 years ago, of text-books that were a bit less anti-American.
一旦可以达到这个目标，气候学家就能根据这些影响进行修正，不仅仅用于现代测量结果的解释，更可用于将气候重塑回数个世纪前的尝试中。
Climate scientists will then be able to correct for these effects, not just in interpreting modern measurements but also when attempting to reconstruct the climate stretching back centuries.
很多研究者同意现代人类起始于非洲，然后在大约50 000年前扩散到全世界。
Most researchers agree that modern humans got their start in Africa and then spread throughout the world beginning about 50,000 years ago.
在我难得呆在家里的时候我总是让自己坐在电视机前，满脑子充斥着现代生活里常有的东西- - - - - -债务、混乱和压力。
I dutifully planted myself in front of the television in the rare moments I was home, and filled my existence with all the normal stuff of modern life-debt, clutter and stress.
在我难得呆在家里的时候我总是让自己坐在电视机前，满脑子充斥着现代生活里常有的东西- - - - - -债务、混乱和压力。
I dutifully planted myself in front of the television in the rare moments I was home, and filled my existence with all the normal stuff of modern life-debt, clutter and stress.
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