CBD  
noun [ U ] uk/ˌsiː.biːˈdiː/ us/ˌsiː.biːˈdiː/
  (SUBSTANCE)      
  chemistry specialized大麻二酚(cannabidiol 的缩写) 
abbreviation for  cannabidiol 
  Recent research suggests that cannabidiol (CBD) may alleviate symptoms of schizophrenia. 最近的研究表明,大麻二酚可以缓解精神分裂症的症状。 
 Compare: tetrahydrocannabinol
 - More examples
- The problem with the new varieties of marijuana is that they are bred to contain more THC and less CBD, and the amounts are unpredictable.
- Two of the major compounds in marijuana – THC and CBD – have cancer-fighting properties, according to scientists researching them.
  (AREA)      
 geography specialized中央商务区(central business district 的缩写) 
abbreviation for central business district
  It's a short stroll to the central business district (CBD). 到中央商务区步行即可。 
 - More examples
- The service is conveniently located in St Kilda Road on the edge of the Central Business District (or CBD, as it is known).
- The Auckland CBD is the geographical and economic heart of Auckland City.