如果不写具体的center，就直接写：
U.S. Department of Homeland Security
U.S. Citizenship and Immigration Services
是不是可以？
还有看到有的人写的地址是：
United States Department of Justice
Immigration and Naturalization Service
到底哪个是正确的？
谢谢！
i*****3 发帖数: 595
2
In all letters, I used:
U.S. Department of Homeland Security
U.S. Citizenship and Immigration Services
