It is actually quite difficult to find reliable statistics on the issue for many schools.

对于许多学校来说，要找到关于这个问题的可靠统计数据是相当困难的。

youdao

I did some research and am unable to come up with any reliable statistics.

我做了一些研究，没能找到任何可靠的统计数据。

youdao

I did some research and am unable to come up with any reliable statistics.

我做了一些研究，没能找到任何可靠的统计数据。

youdao