artery  
noun [ C ] uk/ˈɑː.tər.i/ us/ˈɑːr.t̬ɚ.i/
  (IN BODY)      
  动脉
one of the thick tubes that carry blood from the heart to other parts of the body
  Hardening of the coronary arteries can lead to a heart attack. 冠状动脉硬化可能导致心脏病发作。 
   (ROUTE)      
 要道;干道;干线
an important road or railway line
  the main arteries leading into London 通往伦敦的主干道