Because Chu is vast in territory and abundant in natural resources, and the folk customs are tough, he entered Qin, so he can't go home when he dies. Chu people hate Qin, so there is a saying that although there are three families in Chu, Qin will die.

This famous saying originated from the Qin dynasty's resistance to the rule of the Qin dynasty, and came from Sima Qian's Historical Records of Xiang Yu in the Western Han Dynasty.

It means that even if there are only three clans left in Chu, Qin can be destroyed. Metaphor even weak, unity can also succeed. It represents an emotional conviction. The surname of the Chu royal family is Mi, and this branch is Xiong, which is divided into Zhao (Zhaoyang), Qu (Qu Yuan) and Jing (Jing Cha). Later generations refer not only to several families, but also to several people.

Extended data:

After the Chen Sheng Uprising, Xiang Liang, the son of Xiang Yan, a famous Chu soldier, and Xiang Yu, the nephew of Xiang Liang, killed Qin Huiji County Guard in Wu (now Suzhou, Jiangsu) and rose up to respond. Soon Xiang Liang led 8,000 troops across the river to the north, and the team expanded to 670,000, and Lien Chan won. ?

The nobles of Fujian and Vietnam led the public to disagree, followed Qin Fanyang and turned against Qin. Liu Bang, the original curator of Peixian County, and some criminals fled to Shanze, and also attacked Peiling for rebellion, and were incorporated into Liang Jun. Xiang Liang named Chu Huaiwang's grandson King Chu. Later, Xiang Liang was defeated in Dingtao, and Han's army turned to the north and crossed the river to attack Zhao.

At this time, Wang Li did not let Meng Tian guard the northern frontier, but also led an army from Shang Jun (southeast of Yulin, Shaanxi Province) to the east, and surrounded the giant Lucheng (now Pingxiang, Hebei Province) where Zhang Er and Zhao Wangxie were stationed.

Chu Wang sent and Xiang Yu rescued Zhao, and Liu Bangxi entered the customs. Song went to Anyang and couldn't stay long. Xiang Yu killed Yi Song and led his troops across the Zhanghe River. After fierce fighting, he solved the siege of the giant deer and was promoted to a vassal and general. Later, Zhang Han, the general of Qin, led 200,000 people to surrender to him.

Liu bang detoured into Wuguan and arrived near Xianyang. At that time, Qin Ershi had been killed by Zhao Gao, and Zi Ying was demoted as the emperor, known as the King of Qin, and surrendered to Liu Bang. Liu bang captured Xianyang and Qin died.

Baidu Encyclopedia-Although Chu has three households, Qin will die.