This is the 15959th most frequent Russian word.
проходило
"Проходило" means "passed," "occurred," or "took place" in English.
In this sentence, 'проходило' refers to the occurrence and duration of the event.
Мероприятие проходило в большом зале.
The event was taking place in a large hall.
Here, 'проходило' describes the train moving through the tunnel.
Поезд проходил через туннель в этот момент.
The train was passing through the tunnel at that moment.
In this sentence, 'проходило' illustrates the passage of time.