将以下内容总结为3句话以内，并指明文本的出处。 Decay can be summarized as the process of rotting or spoiling, which can occur in various forms such as organic matter decomposing, materials breaking down, or the erosion of intangible assets like trust or relationships. In a biological context, decay is a natural process that recycles nutrients back into the ecosystem, while in a social or economic setting, the concept of decay can symbolize the decline of values, infrastructures, or systems. The term "decay" is often used in science, particularly in physics and chemistry, to describe the disintegration of atomic nuclei or the degradation of materials over time under specific conditions.
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这段文本出处未明确指出。衰变或腐朽是一个广泛的概念，既包括有机物质的分解、材料的降解，也涉及无形资产的流失，如信任或关系的损害。在生物学、社会经济以及科学尤其是物理和化学中，衰变均扮演着重要角色，涵盖自然循环到价值体系的衰退等多方面内容。
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