Just imagine if the great inventors or explorers of the past had feared the unknown. Then entire population of the world would still reside in the Tigris-Euphrates Valley.

想象一下过去的那些伟大的发明家和先驱者都惧怕未知，那么我们的整个人类社会恐怕至今还在底格里斯河和幼发拉底河流域停留着呢。

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In fact, one has to go back 4,500 years to find the single historical example of a true "water war" - a dispute between the city-states of Lagash and Umma on the Tigris-Euphrates.

事实上，如果要找史例的话，必须追溯到4 500年前才能找到真正“为水而战”的唯一例子，即底格里斯河-幼发拉底河流域的拉加什和乌姆马这两个城邦国之间的争端。

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Turkey plans to harness the waters of the Tigris and Euphrates rivers for big hydro-electric power projects.

土耳其计划利用底格里斯河与幼发拉底河的水来建造大型水力发电工程。

《柯林斯英汉双解大词典》

He demonstrated its reach by showing on-screen the change in the ecology of the Tigris-Euphrates basin in southern Iraq, as recorded by satellite photographs, from 1973 to 2000.

BBC: UN launches one-stop green website

The museum is home to archaeological artifacts from thousands of years of history in the Tigris-Euphrates basin, widely held to be the site of the world's earliest civilizations.

CNN: U.N. agency urges coalition to protect Iraqi relics

The public version of the report did not list specific countries but only watersheds of concern (Nile, Tigris-Euphrates, Mekong, Jordan, Indus, Brahmaputra, and Amu Darya) that corresponded with nations that are strategically important to the United States, illustrating the intersections between water challenges and U.S. national security.

FORBES: Water Risk Threatens Businesses, National Security