This is the 4811th most frequent Portuguese word.
explicaram
"Explicaram" means "they explained" in English.
In this sentence, 'explicaram' is the past tense and third-person plural form of the verb 'explicar', indicating that they (third person plural) performed the action of explaining a concept in the past.
Eles explicaram o conceito claramente durante a aula.
They explained the concept clearly during the class.
Here, 'explicaram' again serves as the past tense, third-person plural form of 'explicar', used to indicate the people who executed the action of giving an explanation to the group.
Explicaram ao grupo como resolver o problema.
They explained to the group how to solve the problem.
'Explicaram', in this instance, suggests that the educators carried out the act of explaining the exercise thoroughly, stressing the completion of the action in the sentence.