If you say that someone or something degenerates, you mean that they become worse in some way, for example, weaker, lower in quality, or more dangerous. 退化; 恶化; 堕落
verb [vi. 不及物动词]恶化,堕落,退化
Inactivity can make your joints stiff, and the bones may begin to degenerate. 不活动会使关节僵硬,骨骼因此可能会开始退化。
adjective [原级]衰退的,堕落的;退化的
...a group of degenerate computer hackers. … 一群堕落的计算机黑客。
noun [专属名词]堕落的人,颓废的人
...various forms of physical and mental degeneration. … 各种形式的身心退化。
-gener- gen,gener,genit=birth,produce,表示“出生,产生”degenerate v. 堕落;衰退(de 坏+gener+ate→往坏产生→ 堕落)