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primary root /ˈpɹaɪməɹi ˈɹuːt/ n

中文：主根

中文 · 主根Español · raíz primariaFrançais · racine principale
Meaning：Root that emerges as the radicle develops; many secondary offshoots rapidly grow out of it.
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Found in these illustrated scenes（2）

Plant structure Germination

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