1. 附录：excursively 易入歧途地 | excursus 附录 | excurvate 弯曲的

2. 附录;附注;附带讨论：excursion 漂游 | excursus 附录;附注;附带讨论 | excuse 借口

3. 补说：excursivesight-seeing 游览的 | excursus 补说 | excurvationexcurvature 外弯

4. 离题语,附注,附记：excursive [离题的,扯开的 | excursus 离题语,附注,附记 | incursion 进入,侵入,入侵,侵犯

noun

1. a message that departs from the main subject

Synonym: digressionasidedivagationparenthesis