" The road probably doesn't rank with the pyramids as a construction feat, but it is a major engineering achievement" , said his colleague, geologist James Harrell of the University of Toledo.

" 这条路比不上金字塔的建筑壮举，但是一项重大的工程成就，他的同事、托莱多大学的地质学家詹姆斯·哈勒尔说道。

Until 1994, when one of the 20th centuries greatest engineering achievements connected them, linking Folkestone in Southern England to Calais in Northern France the channel tunnel is the world's longest undersea tunnel.

直到1994年, 作为20世纪最伟大的工程之一，海峡隧道将它们连接了起来，从英格兰南部的福克斯通延伸到法国北部的加来，这条隧道是世界上最长的海底隧道。

The Hoover Dam is one of the greatest engineering achievements or building achievements of the early twentieth century in the United States and still one of the most impressive or amazing things to see in person.

胡佛水坝是 20 世纪初美国最伟大的工程成就或建筑成就之一，并且仍然是最令人印象深刻或令人惊叹的亲眼所见的事物之一。