Mi mamá me trae el libro a mí, no a ti. - ¡Carlitos, no seas maleducado! Os lo traigo a los dos.My mom is bringing the book for me, not for you. - Carlitos, don't be rude! I'm bringing it for the two of you.
Mi mamá me trae el libro a mí. - Bueno, y mi mamá me trae la pelota a mí.My mum is bringing the book for me. - Very well, and my mum is bringing the ball for me.