鞭辟進裡 [－－进里]

Jyutping bin1 pik1 zeon3 leoi5
Pinyin biān pì jìn lǐ

Definitions (Wiktionary)
  1. phrase, idiomatic, of an article, usually
    to be penetrating
    (syn.) 鞭辟入裡, 鞭辟入里