xiōng dì
兄弟二人丨比喻用法兄弟单位
xiōng dì èr rén | bǐ yù yòng fǎ xiōng dì dān wèi
two brothers | figurative usage: brother units
兄弟部队
xiōng dì bù duì
brother troops/units
兄弟民族。
xiōng dì mín zú
brother nationalities/ethnic groups