drop a bucket into an empty well

英 [drop a bucket into an empty well]
美 [drop a bucket into an empty well]

中文释义

空井打水,徒劳无益

单词分析

单词结构：

drop a bucket into an empty well

字母数：32

记忆提示

🎯 重点记忆：

  • 单词拼写：drop a bucket into an empty well
  • 核心含义：空井打水,徒劳无益

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更新时间：2026-03-25 07:47:48