他的说法得到了近期研究的支持。

His claims are ___backed ___up by recent research.

为了证实这一说法，人们常常引用在孤儿院长大的孩子的案例。

To ___back ___up this claim, the case of children who have grown up in orphanage houses is often cited.

我们需要更多数据来证实我们的假设。

We need more data to ___back ___up our hypothesis.