2, embattled-'Historical Records of Xiang Yu Biography'
3, chop and change-'Zhuangzi'
Four, three orders and five applications-Spring and Autumn Annals
5. There are unknown mathematical idioms:
Three men become tigers, with three heads, six arms and ten faces, ambush you thousands of miles away.
Take the lead wholeheartedly, kill two birds with one stone.
The unique Ssangyong Pearl is unique because it knows one thing and two things.
Two sides, three sides, three pillars, three points to avoid the army and three points to give up.
Lost and scattered, bonfires everywhere, everywhere.
The statue of the Ninth Five-Year Plan was dazzled by repeated orders.
Six unique skills, three teas, six meals, six flies, and six relatives deny the big grievances.
Tearing his hair out about it, Kan Kan talked about it. At the age of seven, he took eighty-seven steps first.
The friendship between eight worshippers is echoed in all directions, and there are talented people in all directions.
99 belongs to 19, 39, 99, Niu Yi's hair was shot nine days away.
Ambush on all sides is sure, firepower is urgent, and nine times out of ten fingers are connected.
There are mixed feelings when you wear a hundred steps, and a hundred flowers blossom.
A thousand miles away, the military name will last forever.