- a mineral that comes from limestone.
一种硫酸钙沉积而来的矿物 - And there was mile after mile of them.
它们绵延不绝 - Water is the creator of most caves,
水是大部分洞穴的建造者 - but, unlike all other limestone caves,
但是 和其它石灰岩溶洞不同的是 - Lechuguilla's rock had not been eaten away by running rainwater.
龙舌兰洞中的岩石并非被流水侵蚀 - Something else was responsible.
而是因为其它的作用力 - The only water Lechuguilla has are these wonderfully still clear pools.
龙舌兰洞中唯一的水 来自这些平静清澈的水塘
but, unlike all other limestone caves, 但是 和其它石灰岩溶洞不同的是
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