Ha ha! This stuff is generally called sweet potato, and in some places it is also called radish. Cantonese people like to make soup, while Yunnan people like to eat it raw. Mainly because of different places of origin, such as Yunnan and Guizhou, the water is relatively sufficient, it is delicious to eat raw, and it is relatively dry in other areas, so it is generally fried or made into soup. If you eat too much, you shouldn't.