it can be difficult to tell good information from bad谁能分析下这个句子!不太理解其翻译为何是难以辨别真假!尤其是from在此处的用法

it can be difficult to tell good information from bad谁能分析下这个句子!
不太理解其翻译为何是难以辨别真假!尤其是from在此处的用法

tell sth from sth
区分 前者和 后者
难以--> it is difficult to do
辨别真假 只是意译而已