弟兄姐妹

dìxiōngjiěmèi
  1. (Christianity) brothers and sisters (in Christ)
  2. brothers and sisters (in Christ)

Wiktionary

Entry Composition

1 弟兄 dìxiong
  1. brothers
  2. comrade
2 姐妹 jiěmèi
  1. sisters
  2. siblings
  3. sister (school, city etc)