land bridge

基本解释

I first came to North American in prehistoric times when I crossed the Bering Strait land bridge from Eurasia.
在史前时期，我从欧亚大陆穿越白令海峡、走过陆地、桥第一次来到了北美。
They knew that every so often during past ice ages, drops in sea level created a land bridge across the strait.
在最后一个冰期期间，他们了解到海平面的下降偶尔会产生横跨海峡的陆桥。
China and the five Central Asian countries are planning to link a new Eurasia Land Bridge, which, known as the modern Silk Road, will connect Europe and Asia.
目前，中国和中亚五国已将建设新亚欧大陆桥提上日程，这条现代“丝绸之路”将会连接欧亚大陆。
www.fmprc.gov.cn

But when that's not true, then there is a typical sort of modern frontier, a land bridge which there a line is-a theoretical line is drawn through it, and on one side is one city, and the other side is another city.
但还不止这些天然边界,另外还有种边界形式,和现代国境线很类似,是由一座陆桥,分割出一条界线…假象的界线,界线的一边是一个城邦,另一边是另一个城邦
耶鲁公开课 - 古希腊历史简介课程节选

The Jewish state would not have included western Galilee, Jaffa or even a land bridge from the Mediterranean coast to Jerusalem.
CENTERFORSECURITYPOLICY: Land for Peace IV: the Sorry Sequel
As the war in Kosovo grinds on, the alliance's need for a land bridge from Germany through the Czech Republic and Slovakia and on to Hungary has enhanced the country's strategic importance.
ECONOMIST: Slovakia

(in zoogeography) a connecting tract of land between two continents, enabling animals to pass from one continent to the other