This is the 6718th most frequent Spanish word.
compartirdos
It seems "compartirdos" is not a valid Spanish word. Perhaps you meant "compartir," which means "to share" in English.
'Compartirdos' is used here in its form as a conjugated compound similar to 'share together'.
Decidimos compartirdos nuestros logros con los demás.
We decided to share our achievements with others.
'Compartirdos' indicates joint participation in sharing.
El objetivo del ejercicio es compartirdos ideas y opiniones.
The goal of the exercise is to share ideas and opinions together.
'Compartirdos' implies sharing something in a mutual or joint manner.