This is the 3392nd most frequent Polish word.
wyjaśniła
"(She) explained."
The verb 'wyjaśniła' is used here to talk about explaining or clarifying something specific, which in this case are rules.
Nauczycielka wyjaśniła nowe zasady gramatyki.
The teacher explained the new grammar rules.
The verb 'wyjaśniła' conveys providing reasons or justifications for one's actions in this context.
Wyjaśniła, dlaczego spóźniła się na spotkanie.
She explained why she was late for the meeting.
Here, 'wyjaśniła' is used to describe the action of simplifying or clarifying a complex term for better understanding.