unbreathable

That subterranean world, Onstott said, is a lightless pool of hot, pressurized salt water that stinks of sulfur and noxious gases humans would find unbreathable.

Onstott说道，那个地下世界是一个没有光的热池，压力下的盐水散发着让人法呼吸的硫黄和有毒气体。