The implication and symbol of Baijue jewelry "the Ninth Five-Year Plan" refers to the honor of the Ninth Five-Year Plan. Wu Jiurong put his finger on his thumb. Wearing a ring on the thumb is generally a sign of confidence and a symbol of status. In ancient times, it was the daily decoration of some noble sons or dignitaries. The most distinguished person in ancient times was the emperor, also known as the Ninth Five-Year Plan.