世外桃源

A generation or lifetime; an era or period of time; the world or society; a surname.

Outside; external; foreign; in addition; not belonging to a certain scope; referring to relatives on the mother's or wife's side; a role in traditional opera playing an elderly man.

A peach fruit or tree; something shaped like a peach; a birthday celebration; a surname; made from walnuts.

Source; origin; root; spring; headwaters of a river; also used as a surname.