This kind of wild fruit is called "milk", which is called by different names in different places. When I was a child, it was called Zandou, and I could eat it.

Milk is sweet and sour, rich in sugar and acid, and also rich in essential amino acids, various mineral elements and vitamins. It can be eaten raw, and it is also a natural beverage resource, which can be used to make wine, juice drinks and jam.

Wild state: