voluntary labo(u)r service

英 [voluntary labo(u)r service]
美 [voluntary labo(u)r service]

中文释义

[劳经] 义务工

单词分析

单词结构：

voluntary labo(u)r service

字母数：26

记忆提示

🎯 重点记忆：

  • 单词拼写：voluntary labo(u)r service
  • 核心含义：[劳经] 义务工

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更新时间：2026-02-14 02:36:17