one by one
Il poliziotto stava controllando le auto una ad una.
The policeman was checking the cars one by one.
Mary ha tirato fuori le uova una ad una.
Mary took out the eggs one by one.
Ecco perché il vecchio controlla le ciotole una ad una.
That's why the old man checks the bowls one by one.
— Tampopo (1985)
Tutte le cose nella casa, furono portate via una ad una.
All the things in the house were taken away one by one.
— Fearless (2006)