味觉减退

例句：

1. 1. After years of smoking, his sense of smell has greatly diminished.
   经过多年的吸烟，他的嗅觉大大减弱。
2. 2. The elderly often experience a decline in their taste for sweets.
   老年人往往对甜食的喜好会有所下降。
3. 3. Due to the aging process, some people's taste for certain foods may gradually diminish over time.
   由于老化过程，一些人对某些食物的喜好可能会随着时间的推移而逐渐减少。