strong enough to burn skin. 酸性强到足以腐蚀皮肤

291. but the biggest surprise is something altogether more bizarre.
     不过更大的惊奇莫过于 那些更奇怪的东西
292. These strange stalactite-like formations are known, rather appropriately, as snotites,
     这些奇特的钟乳石状的结构 确切地说 叫做“鼻涕石”
293. the drops dripping from the ends are sulphuric acid,
     其末端滴落的液滴就是硫酸
294. strong enough to burn skin.
     酸性强到足以腐蚀皮肤
295. The snotites are, in fact, vast colonies of bacteria,
     “鼻涕石”其实是大型菌落
296. capable of going a centimetre a day.
     每天能长长1厘米
297. In this world without sunlight
     在这个没有阳光的世界里

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 294 行