International students must be nominated by their home governments.

国际学生必须由本国政府提名。

An " ambassador" is a person who works for a government, who goes to another country to represent their home government.

“大使” 是为政府工作的人，他去另一个国家代表本国政府。

Home governments may have to pay up to sixty thousand dollars a year for each student they send to West Point.

本国政府每年要为送每个学生到西点军校学习支付6万美元。