Usages of el sistema de seguridad
Elegir un buen sistema de seguridad es imprescindible para evitar ladrones en tu vecindario.
Choosing a good security system is essential to prevent thieves in your neighborhood.
Yo uso el sistema de seguridad en mi casa.
I use the security system in my house.
Elon.io is an online learning platform
We have an entire course teaching Spanish grammar and vocabulary.