a sus perros

their dogs

→ a
phrase Rare #41,865
their dogs The word “sus” can also mean his, her, or your (formal), depending on context. The “a” is often a grammatical marker and is not translated into English.
SP: Llevamos a sus perros al parque.
EN: We took their dogs to the park.

¡Escuché que los japoneses alimentan a sus perros con prisioneros!

I heard that the Japanese feed their dogs prisoners!

— 霸王别姬 (1993)

Llamen a sus perros.

Call your dogs.

Pavlov tocaba una campana cada vez que alimentaba a sus perros.

Pavlov rang a bell every time he fed his dogs.

Miraron a sus perros.

They looked at their dogs.

Hay una teoría que dice que los dueños usualmente se parecen a sus perros.

There's a theory that owners usually resemble their dogs.

Incluso, salen juntos a pasear a sus perros.

They even go out for walks with their dogs together.

— Kal Ho Naa Ho (2003)

Sami no le pide nunca a Layla que saque a sus perros a pasear.

Sami never asks Layla to take her dogs for a walk.