What could be the cause of this strange invisible dividing line that skims across south-west France, cuts through Italy close to Florence, and continues eastwards through the middle of the Black Sea?

是什么原因导致这条奇怪的无形分界线跨越法国西南部，穿过意大利、接近佛罗伦萨，又继续向东穿过黑海中部？

youdao

How do humans compete for access to mates? What you find across cultures is that men often do it through money, through status and through products.

人类是如何为得到求偶机会而竞争的呢？纵览各种文化，你会发现男性通常凭借金钱、地位和成果来竞争。

youdao

That night, they slept as the train rushed through the night across the top of Lake Superior, through the forests and southward toward Toronto.

那天夜里，当列车急驰过苏必利尔湖北部，穿越数片森林、向南驶往多伦多的时候，姐妹俩在车上睡着了。

youdao

Wagon trains -- groups of wagons -- rode in four lines across the land when they passed through dangerous country.

VOA: special.2009.03.30

These insurance contracts have come across gradually through time as we develop the theory and-- I'll talk about the growth of insurance and about some of the components of it.

随着保险理论的发展,保险合约逐渐被人们认同,下面我要讲一下保险的发展历程,以及其中一些值得关注的部分

耶鲁公开课 - 金融市场课程节选

This is not entirely true though and we know that through some very interesting cross-cultural research that compares these biases across different countries, in this study between the United States and India.

这并不全对,我们知道,通过一些有趣的跨文化研究,拿不同国家的这些错误认识来作比较，例如这个拿美国和印度作比较的研究中。

耶鲁公开课 - 心理学导论课程节选

And that energy comes across through arts, through Israeli music, which is very avant-garde, through film, through the visual arts and definitely through the literature.

FORBES: New Start -Up Puts Israeli Creativity To Work on Middle East Peace.

Foden brought the New South Wales Waratahs winger to ground but the Wallabies took the ball through a couple of phases and then moved it through the hands across the width of the pitch for Mitchell to send Elsom striding over for a marvellous try.

BBC: Australia 27-17 England

Hikers pass through a variety of landscapes, through lava fields, across black obsidian ridges and over mountain-tops.

BBC: Mini guide to Iceland's activities