blood brother

美 
英 
  • n.(尤指歃血为盟的)结义兄弟;血盟兄弟
  • 网络亲兄弟;血亲兄弟;血肉兄弟
复数:blood brothers  
blood brother
n.
1.
(尤指歃血为盟的)结义兄弟;血盟兄弟a man who has promised to treat another man as his brother, usually in a ceremony in which their blood is mixed together