in full swing

US /ɪn fʊl swɪŋ/
UK /ɪn fʊl swɪŋ/
"in full swing" picture
1.

in pieno svolgimento, a pieno ritmo

at the peak of activity or progress; fully active or operational

:
The party was in full swing by the time we arrived.
La festa era in pieno svolgimento quando siamo arrivati.
Construction on the new building is now in full swing.
La costruzione del nuovo edificio è ora in pieno svolgimento.