on the fence
US /ɑn ðə fɛns/
UK /ɑn ðə fɛns/

1.
indeciso, neutro
undecided or neutral about something
:
•
I'm still on the fence about whether to take the new job offer.
Ainda estou indeciso sobre aceitar a nova oferta de emprego.
•
The committee is on the fence about the proposed changes.
O comitê está indeciso sobre as mudanças propostas.