大使馆要求财产证明的英文原文！！请教怎么理解？？

“ In order to prove that you have sufficient funds, we request the following:
· family banking records or receipts for the past 18 months (e.g. interest slips, bank books);
· original certificates of deposit (dated within the last 3 months, showing current funds available);
· copies of deposit receipts corresponding to certificates of deposit; and
· a written explanation of the source of funds.
   ………
Other types of assets, such as stock holdings or property, may be included, but these should not be used to replace proof of current bank holdings.”
我们要下面的东西：
1.前18个月的银行纪录或收据（利息单？，存折）
2.原本的储蓄证明（3个月内的？，显示当前的资金能力）
3.储蓄证明对应的储蓄收据的副本；和
4.资金来源的书面解释


问：
1.这四种东西都要么？
2.能不能说一下已经签过的各位当时提供的是什么？
3.大家以前有没有听说提供留学贷款的？拿那个也可以么？
感谢！！