up-and-downness

英 [up-and-downness]
美 [up-and-downness]

中文释义

n. up-and-down的变形

单词分析

单词结构：

up-and-downness

字母数：15

记忆提示

🎯 重点记忆：

  • 单词拼写：up-and-downness
  • 核心含义：n. up-and-down的变形

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更新时间：2026-02-01 00:42:40