Usages of grave
Se algo grave voltar a acontecer, talvez precisemos de ir de urgência ao hospital.
If something serious happens again, we may need to go to the hospital urgently.
O problema é grave.
The problem is serious.
Ela ouviu‑me com atenção e disse‑me que não lhe parecia nada grave.
She listened to me carefully and told me that it didn’t seem serious to her at all.
Elon.io is an online learning platform
We have an entire course teaching Portuguese grammar and vocabulary.