how, by what chance, once in a while, occasionally
어쩌다가 들어왔어요
How did you end up here?
— 러시아 방주 (2002)
너희들은 어쩌다가 보이드에 갇혔어?
How did you guys end up in the void?
— 데드풀과 울버린 (2024)