ci vollero

it took

→ ci
phrase Rare #43,532
it took Used to say how much time was needed for something. This is the past tense of volere in an impersonal expression.
IT: Ci vollero molti anni per finire il ponte.
EN: It took many years to finish the bridge.

Ci vollero dieci anni per costruire il parco di divertimento.

It took ten years to build the amusement park.

Mi ci vollero almeno tre ore per finire i miei compiti di matematica.

It took me at least three hours to finish my math homework.

Ci vollero dei mesi.

It took months.

Ci vollero tre anni.

It took three years.