excursus on + topic
excursus 常接介词 on 或 into，表示离题讨论的话题。
The book contains an excursus on medieval medicine.
这本书包含一篇关于中世纪医学的附记。
补论；附注；专题论述
题外话；插叙；离题话；对书中某一部分(尤指经典著作)的详细论述(通常作为单独章节)。；叙事中的离题话,尤指讨论某一特定问题。；附记；补说
对书中某一部分(尤指经典著作)的详细论述(通常作为单独章节)。
A fuller treatment (in a separate section) of a particular part of the text of a book, especially a classic.
叙事中的离题话,尤指讨论某一特定问题。
A narrative digression, especially to discuss a particular issue.
In academic works, the author sometimes includes an excursus to discuss related topics.
在学术著作中，作者有时会加入一个附记来讨论相关话题。
用法提示：此处"excursus"作为名词，表示书中附加的讨论部分。
His speech contained a lengthy excursus that confused the audience.
他的演讲中有一个冗长的离题话，让听众感到困惑。
用法提示：此处"excursus"作为名词，表示偏离主题的讨论。
The appendix of the book includes an excursus on the historical background.
这本书的附录包含一个关于历史背景的补说。
用法提示：此处"excursus"作为名词，表示补充说明的章节。
excursus 常接介词 on 或 into，表示离题讨论的话题。
The book contains an excursus on medieval medicine.
这本书包含一篇关于中世纪医学的附记。
用于指代作品中的离题部分。
In an excursus, the author explains the background of the myth.
在一段离题话中，作者解释了神话的背景。
grammar · medium
易错句子He excursused from the main topic for several minutes.
正确表达He went on an excursus from the main topic for several minutes.
英语中 excursus 是名词，不能误用作动词。应使用 'go on an excursus' 或类似结构。
grammar · medium
易错句子We planned an excursus to the beach for the weekend.
正确表达We planned an excursion to the beach for the weekend.
Excursus 意为 '离题话' 或 '附记'，而 excursion 才是 '短途旅行'。因拼写相似而混淆，需根据意思区分。
excursus意为离题话或附记，excursion意为短途旅行或远足，两者拼写相近但意义不同。
excursus通常指作为附录或附记的离题部分，而digression更常用于指演讲或写作中临时的离题。
Choose the next layer that will help you use excursus with more confidence.
Recommended next
Missing: Collocations
Complete this area with collocations.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Spelling & sound
Explore words with similar spelling endings or sounds.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Dictionary facts from ECDICT, WIKTIONARY.