In Chinese thought, `衰退` is often seen as a natural phase in a cycle, contrasting with `发展` (fāzhǎn, development) and `繁荣` (fánróng, prosperity). This cyclical view, influenced by concepts like Yin and Yang, sees decline not just as an end, but as part of a larger, ongoing process of change. It's a formal and objective term, frequently used in news reports, economic analysis, and medical diagnoses.