Million, unit of quantity, billion; One thousand, real number; Generally, it is also used to represent empty fingers, and there are many words. The language "Guoyu Yujin II": "My life is based on the field of Fenyang."

Units refer to organs, organizations or departments subordinate to organs and organizations; Refers to the name of the standard quantity for measuring things in mathematics or physics. Generally, there are: meters (m), kilometers (km), cattle (ton) N, pa (ska) PA and other units; In the traditional sense of Buddhism, units refer to quantitative units such as length, quality and time. And there are special terms such as: moment, moment, snap of fingers, moment and so on. Accurately speaking, a unit is a group of a certain amount of substances defined as "1" to become a unit.