decrepit
词根词缀：
crepitant adj. 发噼啪声的
crepit 爆裂 + ant …的，具有…性质的 → 发噼啪声的
crepitate v. 发噼啪声
crepit 爆裂 + ate 做，造成，使… → 发噼啪声
crepitation n. 噼啪声，爆裂声
crepitate的名词
decrepit adj. 衰老的
de 加强 + crepit 爆裂 → 破裂不堪 → 衰老的
数据来源：新东方英语词汇速记大全
相关例句：
Objective In accordance with the structure in decrepit skin, the anti-aging skin of the poly peptides were studied.
目的本文根据皮肤自然老化的原理，研究海洋肽的抗皮肤衰老作用。
An enterprising person is the one who drives through an old decrepit part of town and sees a new housing development.
一个有事业心的人是一个开车路过破落的街市能想到新的房产开发的人。
The Italians, for instance, created the perfect experience of watching football, but then wrecked it with decrepit stadiums, hooligans and match fixing.
例如，意大利人本来创造出了观赏足球的完美体验，但又用破旧的球场、足球流氓和假球黑哨破坏了这种体验。
Hira Hira-Japanese: the feeling you get when you walk into a dark and decrepit old house in the middle of the night.
日语：深更半夜你走进一所又黑又旧的破屋子里的感觉。
Childhood, manhood, and decrepit age ( Francis Quarles).
童年，成年和老年（弗朗西斯·阔勒斯）。
These dirty, decrepit workhorses and their doctored diesel are responsible for a particularly toxic form of air pollution as well as health problems.
这些肮脏破旧的机器和它们所装配的柴油机对一种特殊有毒气体的产生负有主要责任，会造成空气污染和健康问题。