This is papaya of Rosaceae, which is available in our school and looks like this. Different from Rosaceae papaya, it is a common tropical fruit papaya, whose real name is papaya, and it is a fruit of Cruciferae papaya.
Papaya, that is, Xuan papaya, is mostly used to treat diseases and should not be eaten raw. Papaya in the south can be eaten raw or stewed.