backup space flight crew

英 [backup space flight crew]
美 [backup space flight crew]

中文释义

候补航天乘员组

单词分析

单词结构：

backup space flight crew

字母数：24

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🎯 重点记忆：

  • 单词拼写：backup space flight crew
  • 核心含义：候补航天乘员组

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更新时间：2025-12-07 21:09:51