zhè / piān / píng / lùn / biān / pì / rù / lǐ / zhǔn / què / zhǐ / chū / le / wèn / tí / de / gēn / yuán

这篇评论鞭辟入里，准确指出了问题的根源。

This commentary was incisive and accurately identified the root of the problem.