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.