secondary source of infection

英 [secondary source of infection]
美 [secondary source of infection]

中文释义

再侵染源

单词分析

单词结构：

secondary source of infection

字母数：29

记忆提示

🎯 重点记忆：

  • 单词拼写：secondary source of infection
  • 核心含义：再侵染源

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更新时间：2025-12-21 01:19:57