bob up and down

英 [bob up and down]
美 [bob up and down]

中文释义

上下跳动

单词分析

单词结构：

bob up and down

字母数：15

记忆提示

🎯 重点记忆：

  • 单词拼写：bob up and down
  • 核心含义：上下跳动

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更新时间：2026-03-23 11:27:09