2 sentences for 弟兄 (dì​xiong)

1. 他们俩是亲弟兄。

   tā​men liǎ shì qīn dì​xiong.

   The two of them are biological brothers.

   Source: Dong Chinese Dictionary

2. 弟兄们，跟我冲啊！

   dì​xiong men, gēn wǒ chōng a!

   Brothers, charge with me!

   Source: Dong Chinese Dictionary