autodecrement

例句：

1. 1. The population of the city has been autodecrementing steadily for the past decade.
   过去十年里，这个城市的人口一直在稳步减少。
2. 2. The cost of living in this area is autodecrementing due to lower taxes and higher wages.
   由于税率降低和工资提高，这个地区的生活成本正在自动减少。
3. 3.The company's profits have been autodecrementing due to increased competition.
   由于竞争加剧，公司的盈利一直在自动减少。