例句：
Costs have been reduced by 20% over the past year.
过去一年，各项费用已经减少了20%。
The skirt was reduced to ￡10 in the sale.
在大减价期间，这条裙子减价到10英镑。
It reduces the risks of heart disease...
这降低了患心脏病的风险。
They were reduced to extreme poverty.
他们陷入极端贫困的状态。
He was reduced to begging for a living.
他不得不以乞讨为生。