put your finger on

US /pʊt jʊər ˈfɪŋ.ɡər ɑːn/
UK /pʊt jʊər ˈfɪŋ.ɡər ɑːn/
"put your finger on" picture
1.

de vinger leggen op, precies aanwijzen

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.
Ik weet dat er iets mis is, maar ik kan er mijn vinger er niet precies op leggen.
The manager couldn't put his finger on why sales were declining.
De manager kon er zijn vinger niet op leggen waarom de verkoop daalde.