有辦法!

問：你們在美國的費用誰來承擔？
答: 兒子和兒媳承擔。
看了所有的證明，最後說：對不起，我不能給你們簽證，你的兒子是學生，不能負擔你們的費用。我不能保證你們會回來。

Sounds like that the Office rejected the visa because
he/she was questioning your ability to pay for
the cost of your parents.
1.Can you try to have your parent show the officer
their own financial evidence to cover the cost of the
travel and 3~6 month staying with you.

2. bring your father's 工作證明 .

Hope it will help.
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