追根問底 zhuī gēn wèn dǐ

DEFINITIONS

  1. lit. to examine roots and inquire at the base (idiom); to get to the bottom of sth

CHARACTERS

追 zhuī
HSK 5
pursue, chase after; expel
根 gēn
HSK 3
root, base(d on); foundation
問 wèn ask (about), inquire after
底 dǐ
HSK 4
bottom, underneath, underside