we have studied for more than three hours

No se permiten palabras de ese largo
It's late, and we have studied for more than three hours. I need to get home.
Es tarde y hemos estudiado más de tres horas. Tengo que ir a casa.
We have studied for more than three hours; I think we're ready for the test.
Hemos repasado por más de tres horas; creo que estamos preparados para el examen.
We have studied for more than three hours. Let's take a break and get some coffee.
Hemos repasado más de tres horas. Vamos a tomar un descanso para tomar un café.
We have studied for more than three hours, and I still feel like I don't understand this stuff.
Hemos estudiado por más de tres horas y todavía siento que no entiendo la materia.
Palabra del día
permitirse