decline in economic usefulness

英 [decline in economic usefulness]
美 [decline in economic usefulness]

中文释义

[经] 经济效用降低

单词分析

单词结构：

decline in economic usefulness

字母数：30

记忆提示

🎯 重点记忆：

  • 单词拼写：decline in economic usefulness
  • 核心含义：[经] 经济效用降低

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更新时间：2026-02-09 00:55:36