to-and-fro motion

英 [to-and-fro motion]
美 [to-and-fro motion]

中文释义

往复运动

单词分析

单词结构：

to-and-fro motion

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：to-and-fro motion
  • 核心含义：往复运动

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更新时间：2026-04-14 05:44:00