海底生物群——生活在沉积物上和沉积物里的动物——构成了这个巨大的生态系统。
The benthos -- the animals living on and in the sediments -- populate this vast ecosystem.
地球上最大的生物群是海底一块块由类似纤细意大利面条的巨大多细胞细菌组成的地毯。
Among the biggest masses of life on the planet are carpets on theseabed formed by giant multi-cellular bacteria that look like thinstrands of spaghetti.
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