Instead of belching out lava, they were belching out big, big bubbles of methane. And they were creating these volcanoes, and there were flows, not of lava, but of the mud coming out of the Earth but driven by -- I've never seen this before.
不是喷出熔岩，而是喷出 很大很大的甲烷气泡。而它们正在创造这些火山， 这儿流动的，不是熔岩， 而是来自地球内部，由驱动的泥浆， 我以前从未见过这种现象。