鸡犬不惊 chickens and dogs undisturbed
Explanation
形容军队纪律严明，行动谨慎，即使鸡犬也没有受到惊扰。也泛指环境非常平静，没有发生任何意外或骚动。
Describes the strict discipline of an army that acts cautiously, so that not even chickens and dogs are disturbed. It also generally refers to a very calm environment where nothing unexpected or exciting happens.
Origin Story
话说古代某位名将率领大军远征，为了确保军纪严明，他下令全军将士不得扰民，不得喧哗，就连夜间行军也要轻手轻脚，生怕惊扰了百姓家中的鸡犬。大军经过许多村庄，百姓们安然入睡，鸡犬依旧平静，没有一丝骚动，这便是历史上有名的“鸡犬不惊”的佳话。这位名将的军纪之严明，由此可见一斑。而这，也正是他能够取得最终胜利的重要原因之一。 后来，人们便用“鸡犬不惊”来形容军队纪律严明，或形容环境十分平静祥和。
It is said that in ancient times, a famous general led a large army on a long expedition. To ensure strict military discipline, he ordered all soldiers not to disturb the civilians, not to make any noise, even during night marches, they should move quietly, afraid of disturbing the chickens and dogs of the villagers. The army passed through many villages, the villagers slept peacefully, the chickens and dogs remained undisturbed, without the slightest disturbance. This is the famous story of “Chicken and Dog Unaffected” in history. The strict military discipline of this general is clearly visible here. And this was also one of the important reasons for his ultimate victory. Later, people used “鸡犬不惊” to describe the strict military discipline, or a very peaceful and harmonious environment.
Usage
作谓语、宾语；形容环境平静，没有骚乱。
Used as predicate or object; describes a calm environment without unrest.
Examples
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军队纪律严明，夜间行军，鸡犬不惊。
jūnduì jìlǜ yánmíng, yèjiān xíngjūn, jī quǎn bù jīng
The army's discipline was excellent, and the night march proceeded without disturbing even the chickens and dogs.
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他们的到来，并没有扰乱村子的平静，鸡犬不惊。
tāmen de dàolái, bìng méiyǒu rǎoluàn cūnzǐ de píngjìng, jī quǎn bù jīng
Their arrival did not disturb the village's tranquility; nothing was alarmed, not even the chickens and dogs..