i think you miss spelled it..i think what you meant is el traje de baño, which means bathing suit.
El cuarto de bano means room of the bath or bathroom!
Diego is a name, so I am going to assume this question is what does 'Diego es en el bano' mean. It translates to English as 'Diego is in the bathroom'.
the bathroom is the correct translation.
Donde esta el bano? Donde esta=where is el bano=the bathroom
It's a question of emphasis. "a Juan" right after "da" emphasizes to whom the bathing suit was given. "un traje de bano" right after "da" emphasizes what the Mother gave to Juan for the trip.
el bano
El = The De = Of
el bano (the n has an accent above it so its pronounced "el bon-yo"
The translation is "Donde estaba el bano porfavor."
"I have to/must go to/use the restroom" in Spanish is "Tengo que ir al/usar el bano"
Bathroom in Spanish is "el baño."
el bandado no habla ingles. voy al banco de manana. si se puede. puedo ir al bano.