深入骨髓 shēn rù gǔ suǐ

DEFINITIONS

  1. deep into the bone marrow; penetrating to the core

CHARACTERS

深 shēn deep; depth; far; very, extreme
入 rù enter, come in(to), join
骨 gǔ bone; skeleton; frame, framework
髓 suǐ bone marrow; essences, substances