- Without water one might not expect to find any caves,
没有水的地方似乎不可能有洞穴 - but beneath these rolling desert slopes in the United States
但是在美国这些荒凉起伏的山崖之下 - lies one of the longest, deepest and most surprising caves in the world.
存在着一座世界上最长、最深 也最令人惊奇的洞穴 - Its secrets remained unknown until 1986,
它的秘密直到1986年才被人们发现 - when cavers dug through several metres of loose rock
洞穴专家们在松散的岩层中 挖出了一条几十米深的通道 - to the bottom of this pit.
直达这个深渊的底部 - They named the cave 'Lechuguilla'
他们把这个洞命名为“龙舌兰洞”
Its secrets remained unknown until 1986, 它的秘密直到1986年才被人们发现
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