primary germ layers

英 [primary germ layers]
美 [primary germ layers]

中文释义

初级胚层

单词分析

单词结构：

primary germ layers

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：primary germ layers
  • 核心含义：初级胚层

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更新时间：2026-03-18 05:29:47