affair
n. /əˈfer/ A2
事情；事件
An event, situation, or matter of public interest.
仙境例句
The stolen tarts were a serious affair, so the whole pack of cards came to watch.
馅饼失窃可是件大事，整副纸牌都跑来旁听了。
原著这一句
If I or she should chance to be Involved in this affair, He trusts to you to set them free, Exactly as we were.
倘若我和她卷入这起纷争，他就指望你还大家自由，就像我们从前一样。
卡罗尔原著 · 第 12 章