decrepitude
n. 衰老，老朽
例句
The building had a general air of decrepitude and neglect.
这座建筑给人一种破旧并且无人问津的总体印象。
《柯林斯英汉双解大词典》
Frequent exercising can defer the decrepitude.
经常运动锻炼，可延缓衰老。
Partly, I guess, they don't want us running around too much, approaching decrepitude as we are.
我猜在一定程度上因为他们不想让接近老弱之态的我们四处奔波太多。
