put your finger on
US /pʊt jʊər ˈfɪŋ.ɡər ɑːn/
UK /pʊt jʊər ˈfɪŋ.ɡər ɑːn/

1.
정확히 짚어내다, 정확히 알아내다
to identify exactly what is wrong or what has caused a problem
:
•
I know something is wrong, but I can't quite put my finger on it.
뭔가 잘못된 건 아는데, 정확히 짚어낼 수가 없어.
•
The manager couldn't put his finger on why sales were declining.
매니저는 매출이 왜 감소하는지 짚어낼 수 없었다.