ra-a

英 [ra-a]
美 [ra-a]

中文释义

[=radium-a]镭-a

单词分析

单词结构：

ra-a

字母数：4

记忆提示

🎯 重点记忆：

  • 单词拼写：ra-a
  • 核心含义：[=radium-a]镭-a

最近查询：

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更新时间：2026-02-21 00:23:25