putrefy

• Humans , like all animals , quickly learn to assign values to those scents , recognizing that , say , putrefying flesh can carry disease and thus recoiling from its smell and that warm cookies carry the promise of vanilla , sugar and butter and thus being drawn to them
  人类和动物一样会很快地把对这些气味价值做评估，意识到，比方说，化脓的肉会携带疾病、因此对其发出的气味会退缩；热甜饼闻起来可能有香草、糖和黄油，所以会吸引人们。