But finding the right intervention will be a difficult, case-by-case endeavour based mostly on anecdotal evidence.

但找到适当的干预手段是艰难的，就事论事的调查大多基于非官方的证据。

youdao

But finding the right intervention will be a difficult, case-by-case endeavour based mostly on anecdotal evidence.

但找到适当的干预手段是艰难的，就事论事的调查大多基于非官方的证据。

youdao