四面楚歌 sì miàn chǔ gē

sì miàn chǔ gē set phrase surrounded by enemies; isolated and without help
Domain: Idiom 成语
Notes: literally, on all sides, the songs of Chu; refers to the defeat of Xiang Yu of Chu by Liu Bang in 202 BCE at Gaixia (CC-CEDICT '四面楚歌'; CCI '四面楚歌', pp. 94-95; Guoyu '四面楚歌')