The river that formed these deposits was actually not far from an ancient ocean known as the Tethys Sea.

形成这些沉积物的河流实际上离一个叫做特提斯海的古代海洋不远。

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These rivers and river systems are known as "exogenous" because their sources lie outside the arid zone.

这些河流和河川系统被称作“外源河流”，因为它们的源头位于干旱地区之外。

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The Amazon is known as the largest and most dangerous river in the world.

亚马逊河被称为世界上最大和最危险的河流。

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These two artists were linked to a nineteenth century group of painters known as the Hudson River School.

VOA: special.2009.05.01

They are known as Asian Carp and the explosion of their population in the Illinois River is a concern to large-river ecologist Kevin Irons.

VOA: standard.2010.07.20

XsunX, formerly known as Sun River Mining, is now a solar-cell company with no revenue and no orders.

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The painting by the founder of the American art movement known as the Hudson River School was given to Seward when he was governor of New York in the early 1840s.

WSJ: Seward supporters irked by plan to sell NY artwork

They showed that the levees along a navigation channel east of the city, known as the Mississippi River Gulf Outlet, sank at five-times the average rate for the rest of the city.

NPR: Satellite Imagery Shows a Sinking New Orleans