that sustain nearly all life in the ocean. 几乎所有生命的食物链基础
they feed anchovy that gather here in billions. 它们是聚集在这里的数十亿条凤尾鱼的食物来源
This phytoplankton is so abundant that it produces half of all the oxygen on Earth. 大量的浮游植物产生了地球上一半的氧气
that all rely on the nutrients in the scalding water. 这些动物依靠滚烫的水中的营养物质生存
Some suggest that vents like these could be the places 有观点认为四十亿年前
But this devotion means that her offspring are among 但这样的无私奉献意味着它的后代
But it appears that school is over for today. 但似乎今天的课程到此为止了
..but she can't do that on her own. 但这项工作无法独自完成
that the sharks' feasts hardly make an impact. 多到鲨鱼的盛宴几乎不会造成影响