举例来说，棘皮动物传送到海底的碳明显比有孔虫多。
But echinoderms apparently deliver more carbon to the sediments than do forams, for example.
这些小的，多刺的棘皮动物能够找到在全世界的海洋。
These small, spiny echinoderms are found in oceans all over the world.
这些小的，多刺的棘皮动物能够找到在全世界的海洋。
These small, spiny echinoderms are found in oceans all over the world.
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