请高手看一下这一句什么意思？

andyxieyasi

办理父母付费移民里，有一句是这样的：
Your（指申请人--就是父母） relationships：

•Evidence of financial dependency for all dependants aged 18 or older:

◦a certified copy of their birth certificate and proof of their relationship to you
◦if your relative is not your partner: proof the relative lives in your household
◦proof that your relative has been financially dependent on you for at least the 12 months immediately before you lodge your application.

我弄不明白，这道理要提供什么证据？是说担保人在国内有兄弟姐妹的话， 要证明这些兄弟姐妹和申请人（父母）的财务依存关系吗？怎么证明？做什么用啊 ？

谢谢了！！！原话如下：

Your relationships
•Certified copies of marriage certificates or relationship registrations for you and anyone else included in your application, even if they are not joining you in Australia.
•If you are living in a de facto relationship: independent evidence that your relationship is genuine and continuing (for example, joint bank account statements, billing accounts in joint names or joint ownership of major assets).
•If you or anyone included in the application has been widowed, divorced or permanently separated: a certified copy of the death certificate, divorce documents, or statutory declaration separation documents.
•Evidence of financial dependency for all dependants aged 18 or older:
◦a certified copy of their birth certificate and proof of their relationship to you
◦if your relative is not your partner: proof the relative lives in your household
◦proof that your relative has been financially dependent on you for at least the 12 months immediately before you lodge your application