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BBC Science & Nature - Human Body and Mind - Organ Layer
瀏覽：774
日期：2026-04-22
Discover how your skin protects your body from damage, infection and drying out. ... Largest organ Your skin is your largest organ. It covers your entire body and has a surface area of around 2 square metres. Its thickness varies from 0.5mm on your eyelid...看更多
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