What does Zhao Yun mean by holding Liu Bei's son Liu Chan deus ex alone?

This sentence means that Zhao Zilong is holding Liu Bei's only son, Liu Chan, for a long time. Zhao Long refers to Zhao Yun and Zhao Zilong, and refers to Liu Chan alone.

In the Changbanpo War, Zhao Yun was responsible for protecting Mrs. Gan, Mrs. Mi and Mrs. A Dou. However, due to the chaos of the war, Zhao Yun got separated from them, so he led his thirty or forty followers back to look for them. After searching for a circle, he killed Chunyu and rescued Mi Zhu and Mrs. Gan. Zhao Yun sent them to Changbanqiao, which was almost misunderstood by Zhang Fei for betraying Liu Bei. Thanks to Jian Yong's explanation, the facts were clarified.

So Zhao Yun entrusted Mrs. Gan to Zhang Fei and turned back to look for A Dou, but at this time, he was alone without a follower. Zhao Yun stabbed Xia Houen again in the midst of the disorderly army, and later found Mrs. Mi and Dou in her arms by a low wall, but Mrs. Mi was seriously injured and inconvenient to walk, so she entrusted Dou to Zhao Yun and ignored Zhao Yun's advice to jump into a dry well and commit suicide. Zhaoyun carries Dou on his back, carrying Dou's safety deus ex in hundreds of thousands of troops. Extended information

Battle of Changbanpo

In the 13th year of Jian 'an of Emperor Xian of Han Dynasty (AD 28), Cao Cao personally led his troops south to Jingzhou. In August of that year, Liu Biao died of illness, and his second son, Liu Cong, surrendered without a fight after he acceded to the throne, but he dared not tell Liu Bei about it, and Liu Bei did not know about it. After Liu Bei found out, he sent someone to ask Liu Cong, who ordered Song Zhongzhao to announce Liu Bei. At that time, Cao Caojun had arrived in Wancheng. Liu Bei heard that he was frightened and was ashamed to kill Song Zhong, so he led the people to flee.

Cao Cao sent Cao Chun and 5, tigers and leopards, known as the world's Xiao Rui, to chase Liu Beijun. Liu Beijun and the people were more than 1,, and the trench was various, and the March was slow. Jun butch rode in Dangyang Changban to catch up with Liu Beijun. Although Liu Beijun had the public, he was quickly defeated by Cao Caojun. In a panic, Liu Bei only led Zhao Yun, Zhang Fei and Zhuge Liang to escape by dozens of riders.

I lost Zhao Yun while I was running. At that time, someone told Liu Bei that Zhao Yun had gone north to Cao Cao, but Liu Bei didn't believe me, and waved a short halberd at the rumor monger and said, "Zilong won't abandon me." At the same time, Liu Bei ordered Zhang Fei to go to the rear, and Zhang Fei summoned more than 2 scattered soldiers to ride to the long Banqiao rear.

At this time, Zhao Yun didn't get lost in a panic, but turned to kill Cao Jun and went to look for Liu Bei's wife. Zhao Yun was single-handedly, not afraid of Cao Cao's butch riding. Although he lost Liu Bei's two daughters, he finally found Liu Bei's wife, Mrs. Gan, and his youngest son, Liu Chan, and rescued them, so that he could get together with Liu Bei.

reference source: Baidu Encyclopedia-Liu Chan.