2, powerful, powerful, described as strong and powerful. The word is similar to "stiff". It is a new word, which is not used in ancient books, but the word "Jin" often appears.
3. Jin Cuibao's "Ancient and Modern Notes and Clothing": "The story of losing Xin, Khufu also. Sable, take its literary talent and not shine, soft outside and rigid inside; Cicada, take it to empty it. "
4. Don Zhang Kun's "In and Out" Volume 4: "Zhou Lixiang, a native of Hanoi, is full of energy."