primary pollution

英 [primary pollution]
美 [primary pollution]

中文释义

一次污染

单词分析

单词结构：

primary pollution

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：primary pollution
  • 核心含义：一次污染

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更新时间：2026-01-28 03:36:15