电梯正在向下运行。

The elevator is moving in a ___downward direction.

最近几个月房价呈现下降趋势。

The housing prices have shown a ___downward trend in recent months.

自从工厂关闭后，这个小镇的经济就一直在走下坡路。

The town's economy has been on a ___downward trend since the factory closed.