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in a traffic accident

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phrase Rare #27,639
in a traffic accident The particle 로 marks the traffic accident as the cause of what happened.
KO: 그는 교통사고로 다쳤어요.
EN: He was injured in a traffic accident.

이 집 아저씨 교통사고로 돌아가셨을 때 여기 뭐 하러 왔어요?

What were you doing here when the man who lives in this house died in a car accident?

— Oasis (2002)

톰은 어머님이 교통사고로 돌아가셨을 때 세 살 이었어.

Tom was three years old when his mother died in a car accident.

교통사고로 돌아가셨어요

They passed away in a traffic accident.

— 레옹 (1994)

교통사고로 휠체어 신세 인 아버지 한테 차마 얘길 못 하겠어

I just can't bring myself to tell my father, who has been confined to a wheelchair since a car accident.

— 택시 (1998)