渐没

例句：

1. 1. The forest hasbeen gradually disappearing for decades.
   森林已经逐渐消失几十年了。
2. 2. The sun'srays gradually faded as the day woreon.
   随着时间的流逝，太阳的光线逐渐减弱。
3. 3. The population of the city isgradually diminishing due to aging.
   由于人口老龄化，这个城市的居民数量正在逐渐减少。