弹尽援绝

Explanation: Operations run out of ammunition, reinforcements cut off. Also be used to a very difficult situation. 　　Usage: Joint type; as the predicate clause, object, attribute; that an impasse 　　Source: Song Yang Wanli, "Qian Zhao jurisdiction of public epitaph," the public to come forward with the troops, repeatedly Jie. Seven years, food aid must do, the potential can not be re-supported, then rates of thousands of his troops go south. " Thesaurus:  Gunned, Brink extremity, have no means to borrow money, Jin Qiu spacious do, Urn to make cups of dry