后边用介词in，例如：

1、The figures represent a general decline in employment.这些数字显示就业人数总体在下降。

2、Government penny-pinching is blamed for the decline in food standards.政府吝啬被指责是食品标准下降的原因。

3、The company reported a small decline in its profits.公司报告其利润略有减少。