First of all, we should know that butterfly fish is a treasure fish and sole fish is a flounder. They are just different names for a fish. So let's compare turbot and flounder. The halibut is a general term for the fishes of Abalone, including the fishes of Abalone, Abalone and Mullet. The flounder is a strange fish with two eyes on the same side of the head. A flounder with both eyes on the right and a flounder with both eyes on the left are called flounders. Scophthalmus maximus belongs to the flatfish family, commonly known as European flounder, and is called "Scophthalmus maximus" in China. Therefore, it can only be said that turbot is a kind of flounder, and the two are subordinate, not equal. There are also subspecies under Baoyu. Generally speaking, they all belong to flounder and look alike, but there are some differences in skin color and pattern.

Duobao fish is a rare low-temperature economic fish, and it is one of the rare species endemic to the northeast Atlantic coast. In natural waters, the maximum length of adult fish can reach 75 cm. The side is very flat, and it is an oval figure. Its shape is not only strange, but also rich in gum under the skin and at the edge of the fin. Its head and tail fins are very small and its fins are cartilage. There are no small bones in the body, the bones are as white as jade, the visceral mass is small, the meat yield is high, the muscles are rich, white and tender, the meat is delicious, and it is more delicate, smooth and elastic than flounder.