Definition: a reduction Level: B1
我们注意到价格显著下降。
We noticed a significant ___decrease in prices.
老虎数量减少的主要原因是栖息地的丧失。
The main reason for the ___decrease in the tiger population is habitat loss.
去年的犯罪率急剧下降。
There was a sharp ___decrease in crime rates last year.
