- In this world without sunlight
在这个没有阳光的世界里 - these bacteria extract energy from the hydrogen sulphide gas.
这些细菌只能从硫化氢气体中吸收能量 - Bacteria like these are known as extremofile
像这样的细菌被称为嗜极生物 - because of their ability to survive in such extreme conditions.
因为它们能在这种极端环境中生存 - And these extremofiles play another important role in this cave.
这些嗜极生物还在这个洞中 扮演着另一个非常重要的角色 - Surprisingly, they are the basis of a food chain
令人吃惊的是 它们竟然是食物链中的第一环 - which supports, amongst other creatures, the larvae of these midges.
用以养活其它生物 例如这些蚋的幼虫
because of their ability to survive in such extreme conditions. 因为它们能在这种极端环境中生存
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