"She does not need to work."
Translation:Ela não precisa trabalhar.
It is still not the literal translation. I'm not sure where the line lies between 'also accepted' and 'plainly different', but the purpose here is not to translate a book or piece of text in the most natural way. It is to learn differences between phrases and vocabulary in my opinion :)
This is not funny anymore... at the very end of the training (infinitives) they start correcting in strange ways... e.g. She does need to work... I write: ela não precisa trabalhar... they correct: ela não tem que trabalhar!!! Never ever heard about this one before... it starts to work on my system!