soksumuchaek
at one's wits' end
être à bout de nerfs ; être à bout
그는 문제를 해결할 방법이 없어서 속수무책이었다.
geuneun munjele haegyeolhal bangbeobi eobseoseo soksumucheogieotda.
He was at his wits' end because he had no way to solve the problem.
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