Made up mostly of limestone formed from the skeletal remains of sea creatures, the submerged regions of the tidal flats are carved by channels where water flows between land.

这些群岛主要是由海洋生物残骸形成的石灰岩构成，潮汐滩的水下部分被流动的水分割成河道。

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Researchers working in the Black sea have found currents of water 350 times greater than the river Thames flowing along the sea bed, carving out channels much like a river on the land.

在黑海进行研究工作的科研人员发现了在海床上奔涌的水流，它们的流量是泰晤士河的350倍，如同陆地上的河流一样冲刷蚀刻出水道。

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The development of tourist resources for sea island is one of important channels to promoting its economy.

开发海岛旅游资源是振兴海岛经济的重要途径之一。

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Italy, arguing India violated international laws of the sea, called for the dispute to be addressed through international channels.

WSJ: Italy to Return Marines to India

Italy argued India violated international laws of the sea and called for the dispute to be addressed through international channels.

WSJ: Italy to Return Marines to India

The Aswan high dam, for example, is often cited as a cautionary example, a quixotic construction that now reduces the mighty Nile to a dribble before it trickles to the sea, leaving behind an explosion of water hyacinth, outbreaks of bilharzia, polluted irrigation channels and a build-up of sediment inland that would otherwise compensate for coastal erosion from Egypt to Lebanon.

ECONOMIST: Small projects often give better returns