This is the 3300th most frequent Russian word.
отремонтировать
To repair or renovate.
Here, 'отремонтировал' is in the past tense, indicating the action of repairing a specific item, 'машину', which is the object.
Я отремонтировал машину.
I repaired the car.
In this sentence, 'отремонтировать' is in the infinitive form, representing the act of repairing a specific object, 'игрушку', as requested.
Она попросила отремонтировать игрушку.
She asked to repair the toy.
Here, 'отремонтировать' is in the infinitive form again, used to express a future intention to perform the repair action on 'старый дом'.