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  • 英语听力:自然百科 佛罗里达州的温泉(四)

    The cormorant gives up for now. The bird has been foiled by the clarity of the water, the very thing that enables the manatee to thrive. The light through these waters helps plants flourish, and manatees are strict vegetarians. They can eat a hundred...

  • 英语听力:自然百科 佛罗里达州的温泉(三)

    Some springs would eventually emerge in saltwater, more than 20 miles offshore. Here pirates once dropped buckets overboard. It's one of the very few places on earth where the sea provides drinking water. The warm spring waters revitalize the barren...

  • 英语听力:自然百科 佛罗里达州的温泉(二)

    The divers started in the ocean, but they are now within solid bedrock, 150 feet beneath someone's living room. They are now swimming in the water supply for the town above. Here they find, as they had hoped, life in the pitch darkness. These are hyd...

  • 英语听力:自然百科 佛罗里达州的温泉(一)

    Why does Florida have so many springs? Florida sits on a layer of porous limestone which acts as an underground reservoir or aquifer. This aquifer can absorb huge amounts of water. Where the pressure is great enough, springs bubble up, spewing up bil...

  • 英语听力:自然百科 考古揭秘佛罗里达州

    The cool waters of Wakulla Springs makes it a popular place to beat Florida's heat. Tourists lounge on the May beach, while the locals prefer the opposite bank. Despite the cold-blooded company, people have visited these historic springs for years. B...

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