bloodstream [ˈblʌdˌstrim]

例句:

• It allows nicotine to diffuse slowly and steadily into the bloodstream.
  它能使尼古丁平稳缓慢地渗透到血液里。
  
• The disease releases toxins into the bloodstream.
  这种病会释放毒素到血液中。
  
• Once in the bloodstream, the bacteria adhere to the surface of the red cells.
  细菌一进入血液里，就附着在红细胞表面上。
  
• That oxygen is carried through your body in the bloodstream.
  来自SA
• No vaccine is injected into the bloodstream.
  来自SA
• We don't pass it to our children in the bloodstream.
  来自WSJ