down·trend
noun/ˈdaʊntrend/
/ˈdaʊntrend/
[usually singular]- a situation in which business activity or performance decreases or becomes worse over a period of time
（经济活动或运作情况的）下降趋势 - There was a gradual downtrend in the price of grain.
粮食价格逐步回落。
- There was a gradual downtrend in the price of grain.