"The girl eats sweet bread."
Translation:הילדה אוכלת לחם מתוק.
Because there isn't really a bread that you would call sweet bread, you have fruit bread, chocolate bread etc, but they are always named more specifically to their ingredients. There is nothing that i can think of that is called just sweet bread. Also sweetbreads in English means the pancreas of an animal that you would eat (lamb or beef) so it would be confusing.