纵深 zòng shēn

DEFINITIONS

  1. depth (from front to rear)
  2. depth (into a territory)
  3. span (of time)
  4. (fig.) depth (of deployment, progress, development etc)

CHARACTERS

纵 zòng
HSK 6
indulge in, give free reign to
深 shēn
HSK 4
deep; depth; far; very, extreme