fifty year return period

英 [fifty year return period]
美 [fifty year return period]

中文释义

五十年一遇

单词分析

单词结构：

fifty year return period

字母数：24

记忆提示

🎯 重点记忆：

  • 单词拼写：fifty year return period
  • 核心含义：五十年一遇

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更新时间：2026-02-07 01:19:47