詳説

1. Origins, structure, and basic meaning

• Structure: In 詳説 (しょうせつ), detail 詳 and explanation 説 combine to denote a detailed account.
• Basic usage: 詳説 is a thorough explanation of details and grounds.

2. Common pitfalls and similar expressions

• Detailed explanation versus summary
  • 詳説した presents the explanatory act, while 詳説が makes the explanation itself the subject; it differs from a brief summary.