This is the 414th most frequent Portuguese word.
lhe
"Lhe" is a pronoun meaning "to him," "to her," "to you" (formal), or "to it," depending on context.
In this sentence, 'lhe' is used as an indirect object pronoun, referring to the person who will receive the book.
Vou lhe entregar o livro amanhã.
I will give you the book tomorrow.
Here, 'lhe' functions as the indirect object pronoun, referring to the person receiving the explanation.
Ela pediu que eu lhe explicasse o problema.
She asked me to explain the problem to her.
In this example, 'lhe' serves as an indirect object pronoun, representing the person receiving the congratulations.