All four Americans
It's an idiom, pronounced t ó UZH ū s ì y ì, which means to refer to the exile to remote areas. From Zuo Zhuan, the 18th year of Wengong.
explain
It's a metaphor for moving to remote areas.
source
In the 18th year of the Duke of Wen in Zuozhuan, it is said that "the four evil people, chaos, poverty, Taowu, Taotie, are devoted to the four ethnic groups in order to resist the evil spirit."
All four Americans
The same way and the same meaning - dào tóng yì hé
The country is rich and the army is strong - guó fù bīng qiáng
know one 's subordinates well enough to assign them jobs commensurate with their abilities - zhī rén shàn rèn
throw away everything when fleeing - diū kuī xiè jiǎ