CMU的财产证明求解惑

CMU的isi-form上面关于财产证明有这样一句话：

[align="left"] Financial support must equal or exceed tuition and expenses for the first academic year. We[/align][align="left"]must also consider how you will meet the expenses for the entirety of your program. Therefore, you or your sponsor must include additional financial statements or a letter explaining how future expenses will be paid.[/align]
[align="left"]请问后面这一部分要怎么写？有人写过吗？[/align]
[align="left"]谢谢！[/align]