The flow of people is indeed vast: on the country's southern border with Mexico, American patrols encountered migrants nearly 2m times from October 2021 to July this year, a record rate.

人员流动确实很大：在该国与墨西哥的南部边境，从 2021 年 10 月到今年 7 月， 美国巡逻队遇到移民近 200 万次， 创历史新高。