blood brother造句 1. Knowledge is often the blood brother of practice. 2. This blood brother keeps asking me for money. 3. Bob's like a blood brother and would do anything for me. 4. Did he still consider me his best friend and true blood brother? 5. Tuareg cavalryman seldom reveals his face, even to a blood brother. 6. My elder brother is my father's half - son , but we are just like blood brother and sister.