Something else was responsible. 而是因为其它的作用力

324. Water is the creator of most caves,
     水是大部分洞穴的建造者
325. but, unlike all other limestone caves,
     但是 和其它石灰岩溶洞不同的是
326. 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
327. Something else was responsible.
     而是因为其它的作用力
328. 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
329. As the explorers went deeper into the cave,
     随着探险家们深入洞穴
330. they came across whole galleries filled with the most unusual formations,
     他们发现了成片叹为观止的地貌

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 327 行