指日可下 soon to fall
Explanation
指日：指明日期。表示不久就可以攻下。形容胜利或成功即将到来。
Zhǐ rì: refers to a specific date. It means that it can be conquered soon. It describes the imminent victory or success.
Origin Story
话说三国时期，蜀汉丞相诸葛亮率领大军北伐曹魏，在祁山与魏军激战正酣。蜀军凭借精良的装备和高超的战术，连连告捷，魏军节节败退。诸葛亮洞悉魏军部署，料定魏军难以抵挡蜀军凌厉的攻势，便向将士们宣告："魏军防线已不堪一击，我军指日可下长安！"将士们士气高涨，奋勇杀敌，最终攻克了长安城。
During the Three Kingdoms period, Zhuge Liang, the prime minister of Shu Han, led a large army on a northern expedition against Cao Wei, engaging in fierce battles with the Wei army at Qishan. With excellent equipment and superior tactics, the Shu army won consecutive victories, pushing the Wei army back step by step. Zhuge Liang, having a thorough grasp of the Wei army's deployments, anticipated that the Wei army would be unable to withstand the Shu army's fierce offensive, and declared to the soldiers: "The Wei army's defenses are crumbling, and our army will soon seize Chang'an!" Inspired, the soldiers fought valiantly, ultimately capturing the city of Chang'an.
Usage
常用作宾语、谓语，形容即将取得胜利或成功。
Often used as the object or predicate, describing the imminent victory or success.
Examples
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此次战役，敌军兵力薄弱，我军指日可下。
cǐ cì zhàn yì, dí jūn bīng lì báo ruò, wǒ jūn zhǐ rì kě xià
In this campaign, the enemy forces are weak, and our army will soon conquer.
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只要我们坚持努力，成功指日可下。
zhǐ yào wǒ men jiān chí nǔ lì, chéng gōng zhǐ rì kě xià
As long as we persevere, success is just around the corner.