You can be a sweet potato fan. Wash the sweet potato first, and then give it to him by machine. Then start washing, wash out the vermicelli to dry, and then take it to the commune. There is a special vermicelli machine waiting in line to give him money. Xi stone is suitable for soft and hard, and put it in a colander. As soon as the machine is turned on, the vermicelli comes down, goes down to a big pot and takes it away.