le expliqué

I explained to him/her

→ le
phrase Rare #39,962
I explained to him/her “Le” can refer to him, her, or a person addressed formally as you; the context makes the referent clear.
SP: Le expliqué cómo llegar a la estación.
EN: I explained to him how to get to the station.

Yo le expliqué el proceso a él.

I explained the process to him.

Ya le expliqué todo.

I already explained everything to him.

— El nombre de la venganza (2002)

Le expliqué el proceso.

I explained the process to him.

Le expliqué a ella de lo que se trataba.

I explained to her what it was about.

Le expliqué la situación a Alfredo.

I explained the situation to Alfredo.

— Cinema Paradiso (1988)

Le expliqué a él ese asunto.

I explained that matter to him.

Le expliqué las reglas.

I explained the rules to him.

Le expliqué el procedimiento.

I explained the procedure to him.