单语范例（未经PONS编辑处理）
英语
- Upon reaching the pluteus stage (24 hours post fertilization), an abundance of extracellular matrix is also found associated with the syncytia and blastocoel wall.en.wikipedia.org
- That's because the mouth of the pluteus in between its arms, and larval sea urchins deal with the world mouth-first.boingboing.net
- A week after fertilization, you get to the pluteus -- a larval stage that now includes a basic skeletal structure.boingboing.net
- From gastrula to pluteus stages the skeleton grows in both size and complexity.en.wikipedia.org
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英语