难处理的事情, 棘手案件, 疑难案件的英文

hard cases

• 难处:    difficulty; troubl ...
• 理:    texture; grain
• 的:    4次方是 The fourth po ...
• 事情:    affair; matter; th ...
• 棘手:    thorny; troublesom ...
• 案件:    case
• 疑难:    difficult; knotty; ...