Breakdown of À force d'étudier ce dialecte, je le lui explique facilement.
je
I
lui
him / to him / to her (indirect object)
ce
this (before a noun)
étudier
to study
Questions & Answers about À force d'étudier ce dialecte, je le lui explique facilement.
Why use the infinitive étudier after à force d' here?
À force de (meaning by dint of or through repeatedly doing) must be followed by either a noun or an infinitive verb. Because the subject of the main clause (je) is the one doing the studying, we use the infinitive étudier rather than a conjugated verb.
What is the exact difference in meaning between À force d'étudier and En étudiant?
Why is the pronoun order le lui and not lui le?
The translation says explain it to him. Could lui also mean to her?
Yes, absolutely. As an indirect object pronoun, lui means both to him and to her. Without additional context outside of this sentence, je le lui explique could just as easily be translated as I explain it to her.