.

아마 다른 경쟁자가 있지 않았을까요?
Unfortunately, the reality is that you got rejected for A REASON.
Maybe your qualifications aren’t as strong as you thought they were, or maybe you are very strong but other candidates’ are stronger.
You might try saying
Would you provide me what was the specific reason(s) that I get rejected? It would be greatly appreciated.
미안합니다.
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