主阵地

主陣地
zhǔzhèndì
  1. (military or figurative) primary battlefield
  2. primary battlefield

Wiktionary

Entry Composition

=1 主 zhǔ
  1. owner
  2. master
  3. host
  4. individual or party concerned
  5. God
  6. Lord
  7. main
  8. to indicate or signify
  9. trump card (in card games)
=1 主 zhù
  1. Classifier for events.
  2. alternative form of 注 (zhù, “to pour into”)
2 阵地 zhèndì
  1. (military) position
  2. front