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vitelline membrane /ˈvɪzɪtəz ˈweɪtɪŋ ˈɹuːm/ n

中文：卵黄膜

中文 · 卵黄膜Español · membrana vitelinaFrançais · membrane vitelline
Meaning：Thin flexible transparent tissue enveloping the yolk.
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Bird egg

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