Pass it on for two thousand years and set a new number.

Chinese medicine has been passed down for thousands of years! Long is homophonic with 9.

Say or write an obscure word to refer to something or a word to make people guess. Riddle is a unique language art created by people according to the needs expressed in social life. It has a long history and a fairly broad mass base in China. The usual numerical answer is, for example, that the staff is three years older than the actual age-the answer is 83.