second-class maintenance

英 [second-class maintenance]
美 [second-class maintenance]

中文释义

二级保养

单词分析

单词结构：

second-class maintenance

字母数：24

记忆提示

🎯 重点记忆：

  • 单词拼写：second-class maintenance
  • 核心含义：二级保养

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更新时间：2026-04-26 04:51:09