孤軍奮戰

Simplified: 孤军奋战

gūjūnfènzhàn ㄍㄨ ㄐㄩㄣ ㄈㄣˋ ㄓㄢˋ

    • lit. lone army putting up a brave fight (idiom)
    • fig. (of a person or group of people) struggling hard without support

Character by character

Sources