reduce 
英 [rɪˈdjuːs]  美 [rɪˈdus] 
v. 缩减，减小；简化；将…还原；节食；降职

例句：
The reduced consumer demand is affecting company profits. 

消费者需求的减少影响了公司的盈利。

It reduces the risks of heart disease. 

这会降低患心脏病的风险。

The workforce was reduced from 13,000 to 7,500. 

职工人数从13,000人减少到了7,500人。

Consumption is being reduced by 25 per cent. 

消耗量减少了25%。