2. G not ng, a first-class Chinese character, pronounced as G not ng, was first seen in Oracle Bone Inscriptions. Shuowen: "Workers, like people, have rules." The original meaning should be the present, that is, the ruler, but this meaning has long been lost, and later generations use the extended meaning. The earlier and more direct extended meaning is craftsman; The meaning of craftsman is also extended to be good at exquisiteness and superb skills; Another earlier meaning directly derived from the original meaning is engineering significance; From the meaning of engineering, the meaning of merit and merit is extended, and then merit is written; "Work" also had the meaning of official business and professional affairs earlier, which came from the meaning of craftsman or engineering.