get down to
US /ɡet daʊn tuː/
UK /ɡet daʊn tuː/

1.
se mettre à, passer à
to start to consider or deal with something seriously
:
•
It's time to get down to business.
Il est temps de se mettre au travail.
•
Let's get down to the main points of the proposal.
Passons aux points principaux de la proposition.