Usages of el prototipo
El prototipo ya estará terminado para cuando llegue el atardecer.
The prototype will already be finished by the time sunset arrives.
Para cuando evaluemos la maqueta, el prototipo estará terminado.
By the time we evaluate the mock-up, the prototype will be finished.
Elon.io is an online learning platform
We have an entire course teaching Spanish (Latin America) grammar and vocabulary.