这个城市的人口在逐年递减。
There has been a progressive decrease in population every year in this city.
种植业费用生产弹性系数较高，但边际效益逐年递减；
The production elasticity coefficient for plant industry fee is higher, but the marginal efficiency is decreasing year by year.
土壤的低肥力使这块大陆的许多地方的农产品在逐年递减。
Low soil fertility has slowed agricultural production in parts of the continent for years.
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