What does it mean to exchange moon cakes on Mid-Autumn Festival?

Exchanging moon cakes in the Mid-Autumn Festival means exchanging your own moon cakes with others' during the Mid-Autumn Festival. The Mid-Autumn Festival, also known as the Reunion Festival, is a traditional festival in China. Exchange means barter, barter, and both parties give their things to each other. Moon cakes, also known as moon cakes, harvest cakes and reunion cakes, are one of the traditional delicacies of Han nationality in China. So I changed the moon cake to Mid-Autumn Festival, which means that the Mid-Autumn Festival changed my own moon cake to someone else's moon cake.