be at pains to do sth

[be at pains to do sth]
[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