Built in the morning, ruined by evening; refers to something that is quickly established and just as quickly destroyed or changed, indicating extreme impermanence or rapid cycles of change.
这家公司的产品开发缺乏长远规划，常常是朝成夕毁，导致市场反响不佳。
This company's product development lacks long-term planning, often built in the morning and ruined by evening, leading to poor market reception.
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