be unsparing in one's efforts

英 [be unsparing in one's efforts]
美 [be unsparing in one's efforts]

中文释义

不遗余力

单词分析

单词结构：

be unsparing in one's efforts

字母数：29

记忆提示

🎯 重点记忆：

  • 单词拼写：be unsparing in one's efforts
  • 核心含义：不遗余力

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更新时间：2026-02-22 12:24:58