Rainwater flows down to the non-porous layer of rock, and then it flows sideways to where the river cuts through the rock layers.

雨水向下流，流到不渗透岩石层，接着，向旁边流到河流穿过岩石层的那个地方。

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Find: the seabed river flows from Turkey's Bosporus Among the largest of these channels is off the coast of Brazil where the Amazon enters the Atlantic Ocean.

发现：在这些最大的通道之中的源从土耳其的博斯普鲁斯海峡的海底河流，具有像关闭巴西海岸那样的价值，而后者则是亚马逊河进入大西洋之处。

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Lava strata are most easily seen at the Grand Canyon of the Yellowstone, where the Yellowstone River continues to carve into the ancient lava flows.

熔岩地层是黄石公园的大峡谷中最容易看到的岩石。黄石河继续雕刻着这些古老的熔岩流。

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