af·ter·thought /-ˌθɔt/
事後才有的想法,追悔,再思
Aft·er·thought n.
1. Reflection after an act; later or subsequent thought.
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afterthought
n 1: thinking again about a choice previously made; "he had
second thoughts about his purchase" [syn: reconsideration,
second thought, rethink]
2: an addition that was not included in the original plan; "the
garage was an afterthought"