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1.The echinopluteus larva is a fascinating creature that feeds on plankton.
海葵幼虫是一种令人着迷的生物，它们以浮游生物为食。
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2. In the ocean, the echinopluteus larva is a common sight, often seen swimming among schools of fish.
在海洋中，海葵幼虫很常见，经常可以看到它们在鱼群中游动。
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3.Researchers have discovered that the echinopluteus larva plays an important role in the ecosystem by consuming harmful algae.
研究人员发现，海葵幼虫在生态系统中起着重要作用，通过消耗有害藻类来维持生态平衡。