甜橙, also known as sweet orange, is a citrus fruit that belongs to the Rutaceae family. It is characterized by its bright orange skin and juicy, sweet flesh. Sweet oranges are commonly consumed fresh or used to make juice, and they are rich in vitamin C and other nutrients. This fruit is believed to have originated in Southeast Asia and has been cultivated for thousands of years. Today, sweet oranges are grown in many parts of the world, with major producers including Brazil, the United States, and India. They are popular for their refreshing taste and health benefits.