听力原文

This tranquil world is home to specialised cave fishes, like the eyeless Golden Barb.
这静谧的世界是穴居鱼的家，比如无目金鲃。
China may have more unique kinds of cave evolved fishes than anywhere else on earth.
中国或许拥有地球上种类最为繁多的洞穴进化鱼。
Above the water table, ancient caverns abandoned by the river slowly fill up with stalactites and stalagmites.
在地下水位线，被河流遗弃的远古洞穴中充斥着石笋和钟乳石。
Stalactites form as trickling water deposits tiny quantities of rock over hundreds or thousands of years.
含有沉积物的水流在千万年间“滴水成石”。
Stalagmites grow up where lime-laden drips hit the cave floor.
含有石灰质的水滴落石床形成石笋。

重点讲解

重点讲解：
1. fill up
（使）装满；（使）注满；（使）充满；
eg. We fill up our lives with meaningless tasks.
我们终日忙忙碌碌，过得毫无意义。
eg. I want to fill up the fuel tank before returning the car.
我想在还车之前把油箱加满。
2. a quantity/quantities of
大量的；
eg. Large quantities of water are needed for cooling purpose.
冷却要用大量的水。
eg. He collected a quantity of curious information.
他搜集了大量稀奇古怪的消息。
3. grow up
形成；兴起；逐渐发展；
eg. A variety of heavy industries grew up alongside the port.
各种重工业沿着港口逐渐发展起来。
eg. Through capital management, they fleetly grow up, and occupy vast market.
通过资本运营，国际饭店集团迅速成长起来，在全球范围内占领了市场。