This is the 8846th most frequent Portuguese word.
aprendam
"Aprendam" means "learn" (imperative form, plural).
In this sentence, 'aprendam' is used as the imperative form of the verb 'aprender', directed towards a group, as a polite command or request for learning something.
Por favor, aprendam estas lições com atenção.
Please, learn these lessons attentively.
Here, 'aprendam' is in the subjunctive mood, indicating a wish or hope regarding a group learning to value something.
Espero que aprendam a valorizar o esforço alheio.
I hope you learn to value others' efforts.
In this case, 'aprendam' is also in the subjunctive mood, but it is used in a temporal clause indicating a condition that needs to be fulfilled before advancing.