extraneous source

英 [extraneous source]
美 [extraneous source]

中文释义

外源

单词分析

单词结构：

extraneous source

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：extraneous source
  • 核心含义：外源

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更新时间：2026-03-13 14:22:27