Dí / jūn / bèi / kùn / chéng / zhōng / yǐ / jīng / dàn / jìn / liáng / jué / zhǐ / néng / tóu / xiáng

敌军被困城中，已经弹尽粮绝，只能投降。

The enemy troops were trapped in the city, out of ammunition and food, and had no choice but to surrender.