鞭闢入裡 biān pì rù lǐ

DEFINITIONS

  1. penetrated
  2. trenchant
  3. incisive

CHARACTERS

鞭 biān
HSK 5
whip; whip; string of firecrackers
闢 pì open; settle, develop, open up
入 rù
HSK 4
enter, come in(to), join
裡 lǐ inside, interior, within