Semi-smooth tongue sole, a fish belonging to the order Plaice, Glossidae, and Glossula genus, is commonly known as dragon's leg, cow's tongue, sole, sole plate, carp sole, thin scale, and sole rice. It is a large warm-temperature offshore bottom fish that lives and inhabits the offshore areas of China all year round. It has the characteristics of wide temperature, wide salt content and adaptability to changing environmental conditions. It is delicious and delicious, with high meat yield and smooth texture. The fish meat is not aged after being cooked for a long time, and has no fishy or peculiar smell. Such a big one costs about 30 yuan per pound.