decayKK [dɪˋke] /dɪˈkeɪ/发音名词1腐烂、腐坏The smell of decay came from the pile of fallen fruit.那堆落果散发出腐烂的味道。2衰败、没落、破败Years of neglect left the old theater in a state of decay.多年无人管理,让这座老剧院显得破败不堪。3蛀蚀、蛀牙多指牙齿Regular brushing helps prevent tooth decay in children.定期刷牙有助于预防儿童蛀牙。4衰变、衰减物理Scientists measure the decay of radioactive material over time.科学家测量放射性物质随时间的衰变。动词1腐烂、腐坏、腐化Leaves decay quickly in warm, wet weather.在温暖潮湿的天气里,落叶很快就会腐烂。2衰败、衰退、没落The industrial district slowly decayed after the factories closed.工厂关闭后,这个工业区逐渐衰败。3衰变、衰减物理The isotope decays into a more stable element.这种同位素会衰变成较稳定的元素。用这个字练口说→