2. Millet, known as millet or millet in ancient China, is also called Liang. Millet in northern China, commonly known as millet, belongs to Gramineae and is the finished product of shelled millet. The grain of rice is very small, yellow or yellow-white, hard in texture, and the finished product has a sweet taste. It is one of the staple foods of people in northern China. Because of its small particles, about 2 mm in diameter, it is named Xiaomi.