剑及履及 swift and decisive
Explanation
形容行动迅速而坚决。
describes an action as quick and decisive.
Origin Story
话说当年，秦王扫六合，统一六国，其军队之行动之迅速，可谓剑及履及。彼时，秦军兵锋所指，寸土难留，所向披靡。各路诸侯纷纷投降，秦国军队如秋风扫落叶一般，迅速攻克了一个又一个城池。这不仅是因为秦军实力雄厚，更因为他们的行动坚决果断，从不犹豫拖延。消息传来，秦军已到城下，守军尚在商议对策，秦军已攻破城门。秦军行动的迅速，犹如兵贵神速，令敌人防不胜防。如此迅速有效的军事行动，也使得秦军所向无敌，最终完成了统一大业。这便是“剑及履及”的最好诠释，也告诉我们行动的果断和迅速，往往能够事半功倍。
It is said that in ancient times, when King Qin unified the six kingdoms, the speed of his army was remarkable, comparable to the speed of putting one foot in front of the other. At that time, wherever the army went, they left no inch of land unconquered, sweeping all before them. The princes of various states surrendered one after another, the Qin army conquering city after city as quickly as autumn leaves falling in the wind. This was not only due to the Qin army's strong military might, but also to their decisive and swift actions, never hesitating or delaying. As soon as news arrived that the Qin army was at the city gates, the defenders were still discussing strategies when the Qin army had already broken through the gates. The speed of the Qin army was like lightning, taking the enemy completely by surprise. Such swift and effective military actions made the Qin army invincible, ultimately achieving unification. This is the best interpretation of "Jian Ji Lü Ji", and shows us how decisive and rapid action can often lead to success.
Usage
用于形容行动迅速、果断。
Used to describe actions as swift and decisive.
Examples
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他做事雷厉风行，真是剑及履及。
ta zuòshì léilì fēngxíng, zhēnshi jiàn jí lǚ jí
He acted decisively and swiftly, truly achieving what he set out to do.
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改革开放以来，我国经济发展迅速，可谓剑及履及。
gǎigé kāifàng yǐlái, wǒ guó jīngjì fāzhǎn xùnsù, kěwèi jiàn jí lǚ jí
Since the reform and opening up, China's economic development has been rapid, it can be said to be lightning fast