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.
在史前時期，我從歐亞大陸穿越白令海峽、走過陸地、橋第一次來到了北美。
They knew that every so often during past ice ages, drops in sea level created a land bridge across the strait.
在最後一個冰期期間，他們了解到海平麪的下降偶爾會産生橫跨海峽的陸橋。
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，中國和中亞五國已將建設新亞歐大陸橋提上日程，這條現代“絲綢之路”將會連接歐亞大陸。
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.
但還不止這些天然邊界,另外還有種邊界形式,和現代國境線很類似,是由一座陸橋,分割出一條界線…假象的界線,界線的一邊是一個城邦,另一邊是另一個城邦
耶魯公開課 - 古希臘歷史簡介課程節選

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