Who has eaten melons from south to north?

Melon, groan, bitterness. It is a pear-shaped plant fruit, which looks like a gourd, but it has no beautiful shape. It can be used as a vegetable, but in ancient times, after it matured and aged, it was more used as a tool-spoon. Now the vegetable market often has it. It tastes the same as Zanzi, but the skin is old. Sometimes the pulp is bitter when you meet bad varieties. See attached figure for specific appearance: