close the stable door after the horse has bolted
/kləʊz ðə ˈsteɪ.bəl do(ː)ɹ ˈaftə(ɹ) ðə hɔːɹs hæz ˈbəʊltɪd/
To react too late to prevent a problem.
“It is too late to close the stable door after the horse has bolted.”
My Deck에 추가
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