Communication etiquette and features among young people in China

15. How do you address your brother(s)/sister(s)

  1. brother / sister
  2. no
  3. by nickname
  4. names
  5. A
  6. by names
  7. chechi[elder] by name[to younger one]
  8. brother and sister
  9. by name
  10. bro, sis