v.衰退，(使)腐烂，(建筑、地方等)破败，衰败，(力量、影响等)衰弱，衰减
n.腐烂，腐朽，(社会、机构、制度等的)衰退，衰落

原形：decay第三人称单数：decays过去式：decayed过去分词：decayed现在分词：decaying

My teeth started to decay.
我的牙齿开始蛀了。
Infirmity that decays the wise.
老弱会使人的智慧衰退。
The dampness of the climate decayed the books and clothes.
气候潮湿使书籍和衣服霉烂了。
What made the Roman Empire decay?
罗马帝国为何衰亡？
Sugar can decay the teeth of the children.
糖会蛀蚀孩子们的牙齿。
Radioactive substances decay at a predictable rate, releasing particles over time.
放射性物质以可预测的速率衰变，随着时间的推移释放粒子。
The ancient statue showed signs of decay from exposure to weather elements.
那座古老的雕像因受天气因素影响而显示出腐朽的迹象。
Her health has been in steady decay since she retired.
自从退休后，她的健康状况持续恶化。
The once-vibrant city is now decaying due to neglect and lack of investment.
这座曾经生机勃勃的城市因为被忽视和缺乏投资而日益衰败。
The old house needed extensive repairs; the paint was peeling and the roof was showing signs of decay.
那栋老房子需要大量维修，油漆剥落，屋顶也显示出腐烂的迹象。
The concept of truth is subject to decay when manipulated by those in power.
当权者操纵真理时，其概念就会受到侵蚀。
The library's collection of rare books has suffered from years of neglect and decay.
图书馆的珍本书籍因长期被忽视而遭受了严重的损坏。
Her optimism began to decay after a series of setbacks.
一系列挫折之后，她的乐观情绪开始消退。
The traditional skills of the craftsmen are slowly decaying as younger generations lose interest.
由于年轻一代失去兴趣，工匠的传统技艺正在慢慢衰退。
The garden's beauty was in stark contrast to the decaying shed in the corner.
花园的美丽与角落里破败的小屋形成了鲜明对比。