hard-core  
adjective uk/ˌhɑːdˈkɔːr/ us/ˌhɑːrdˈkɔːr/
  (SEX)      
  (性描写)赤裸裸的,露骨的
showing sexual acts clearly and in detail
  hard-core pornography 赤裸裸的色情作品 
 Compare: soft-core
   (BELIEF)      
 信仰坚定的
used to describe people who strongly believe in something
  hard-core party members 党员骨干分子