But isn't that isthmus only composed of quicksand?

那么，这地只是由松动的沙土形成的吗？

Yes, last night, in a matter of minutes, we cleared that insuperable isthmus.

对，就是昨夜，几分钟内，我们便走过了这不能走过的地。

They itched to visit a famous isthmus and planned a wonderful itinerary.

他们渴望游览一处著名的地并计划了一条很棒的路线。

Today,nearly 14,000 vessels travel through the isthmus annually— each in under 12 hours.

如今，每年有将近 14,000 艘船只穿越地——每艘船只的航行时间都在 12 时以内。

To truly connect these two bodies of water shipping interests needed a canal— a continuous maritime passage through the isthmus.

为了真正连接这个水域， 航运需要一条运河— —一条穿过地的连续海上通道。

To move goods between Asia and the Mediterranean basin, traders had to traverse the narrow isthmus separating the Red Sea and the Nile, journeying in camel-bound caravans through the unforgiving desert.

在亚洲和地中海盆地之间运输货物，商人不得不穿越分隔红海和尼罗河的狭窄的地，骆驼的大篷车上穿过无情的沙漠。

As the isthmus was then a part of Colombia, President Roosevelt proceeded to negotiate with the government at Bogota a treaty authorizing the United States to cut a canal through its territory.

由于地当时是哥伦比亚的一部分，罗斯福总统手与波哥大政府谈判一项条约， 授权美国在其领土上开辟一条运河。

The idea of a water route across the isthmus, long a dream of navigators, had become a living issue after the historic voyage of the battleship Oregon around South America during the Spanish War.

横跨地的水道想法成为了航海家长期以来的梦想，现在已经成为一个现实的问题。

The very narrow isthmus of Panama presented a unique opportunity for mankind to build a shortcut by carving a Canal across just a bit more than 50 kilometers worth of land that separated the two oceans here.

巴拿马非常狭窄的地为人类提供了一个独特的机会，通过在仅 50 多公里的土地上凿出一条运河来修建一条捷径，这条运河将这里的大洋分隔开。

On February 6 the Nautilus cruised in sight of the city of Aden, perched on a promontory connected to the continent by a narrow isthmus, a sort of inaccessible Gibraltar whose fortifications the English rebuilt after capturing it in 1839.

2月6日，诺第留斯号浮出水面，远远看见亚丁港，港筑在海呷上，一条很窄的地把它跟大陆连接起来。