be at pains to do sth

英 [be at pains to do sth]
美 [be at pains to do sth]

中文释义

下苦功; 花大力气

单词分析

单词结构：

be at pains to do sth

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：be at pains to do sth
  • 核心含义：下苦功; 花大力气

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更新时间：2026-04-12 07:11:11