Usages of concentrado
Para a graduação, precisamos de estar concentrados, e nós estamo-lo.
For the grading, we need to be concentrated, and we are.
Estás concentrado? Estou-o, mas hoje sinto-me pouco ágil.
Are you concentrated? I am, but today I feel not very agile.
Elon.io is an online learning platform
We have an entire course teaching Portuguese (Portugal) grammar and vocabulary.