chemical brownstain

英 [chemical brownstain]
美 [chemical brownstain]

中文释义

化学褐变

单词分析

单词结构：

chemical brownstain

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：chemical brownstain
  • 核心含义：化学褐变

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更新时间：2026-01-20 21:53:31