a wake-up call (a uēk appu kōru)

Idiom Change

意味

an event that makes someone realize they need to change

自分が変わる必要があることに気づかせる出来事 (jibun ga kawaru hitsuyou ga aru koto ni kidzukaseru dekigoto)

例文

"Losing his job was a wake-up call for him."

"仕事を失うことは彼にとって目覚ましの鐘でした。" (shigoto o ushinau koto wa kare ni totte mezamashi no kane deshita)