"Here is a little letter." So, the deal is: when Mr. Domingos or someone in the family or in the neighbourhood receives something that they don't understand,  they come to me and I help them to translate it.
"Una cartita". Cuando el Sr. Domingos  o alguien de la familia o en el vecindario recibe algo que no entiende, ellos  vienen a mí y les ayudo a traducirlo.