The smell of death and decay hung over the town.

城市上空弥漫着死亡和腐烂的气息。

《牛津词典》

I don't equate dirt with death and decay.

我并不认为污垢就等于死亡和腐臭。

youdao

Death Coil, Frost Strike, Death and Decay damage increased.

死亡缠绕，冰霜打击，死亡凋零的伤害都会提升。

youdao

Life as we know it exists because of death and decay.

FORBES: Why Butchers Are Sexy And Cutting Meat Is An Art Form

Another is for a wiser attitude to the process of decay and the fact of death.

ECONOMIST: Dust and decay

They are the ambulance chasers of the forest floor, thriving on the death of trees and the rain that speeds their decay.

NPR: Morel Satisfaction: Stalking the Wild Mushroom