This is the 5245th most frequent Russian word.
обслуживает
"Serves" or "provides service."
In this sentence, 'обслуживает' is used to describe the action of serving or attending to, specifically referring to customer service by a restaurant.
Этот ресторан обслуживает посетителей круглосуточно.
This restaurant serves visitors around the clock.
Here, 'обслуживает' refers to the professional maintenance or care provided for systems or infrastructure.
Сантехник обслуживает все системы водоснабжения в этом здании.
The plumber maintains all the water supply systems in this building.
In this example, 'обслуживает' is used to express the action of fulfilling or addressing needs or requirements.