一成不变

yī chéng bù biàn

HSK 7–9

Meaning

一成不变：形容事物一经形成就不再改变，多指墨守成规，不知变通。

Immutable; unchanged; sticking to old ways without change.

常用于形容习惯、规则、观念等长期保持原样，没有改变。

Often used to describe habits, rules, concepts, etc., that remain the same over time without change.

1 这家公司的管理模式一成不变，导致效率低下。（The management model of this company remains unchanged, leading to low efficiency.）
2 他对传统工艺的热爱一成不变，坚持手工制作。（His love for traditional crafts is unchanged, insisting on handmade production.）
3 社会在不断进步，我们的思想也不能一成不变。（Society is constantly advancing, and our thoughts cannot stay unchanged.）
4 天气预报说未来几天的天气一成不变，都是晴天。（The weather forecast says the weather for the next few days will remain unchanged, all sunny.）
5 他的作息时间一成不变，每天准时起床睡觉。（His daily routine is unchanged, getting up and going to sleep on time every day.）

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