核心词议：
n. 减少；下降；缩小；还原反应
reduction 基本解释
n. 减少；降低；[数学]约简；[摄影术]减薄
速记方法
速记技巧 词根词缀法 re-回+-duct-引导+-ion
知识扩展
重要短语
noise reduction噪声降低，噪声消减
cost reduction成本降低
reduction method还原法；设置限制方法
reduction process还原过程；减除作业
reduction 变化形式
复数： reductions
易混淆的单词： Reduction
易混淆的单词： Reduction
中文词源： reduction 减少，简化，降低 来自 reduce,减少，简化，-t,过去分词格，-ion,名词后缀。 reduction
精选例句
1、 It has a new noise reduction ear tip.
它有一个新的降噪耳尖。[机器自动翻译，如有错误，感谢纠错]
2、 Some countries have decided to continue these reductions until 2020.
一些国家已决定将这些减排持续到2020年。[机器自动翻译，如有错误，感谢纠错]
1、 Instead of giving people practice, the gradual reduction likely gave them cravings (瘾）and withdrawal symptoms before they even reached quit day, which could be why fewer people in that group actually made it to that point.
而不是让人们练习，逐渐减少可能会让他们上瘾和戒断症状，甚至在他们达到戒断日之前，这可能就是为什么那组人中很少有人真正做到这一点。
1、 L) The nations participating at COP 21 are focusing on quantitative emissions-reduction commitments.
参加缔约方大会第21次会议的国家将重点放在定量减排承诺上。
1、 “We see that the program is associated with a 30 percent reduction in deforestation,” Ferraro says.
费拉罗说:“我们看到该项目与减少30%的森林砍伐有关。”
常见考点例句：
- Debt reduction has become a hot political issue .
- 债务削减计划已成为一个政治热点。
- Deleveraging also means a reduction in lending activity .
- 去杠杆化也意味着借贷行为的减少。
- Another is reduction of the airport nuisance factor in big cities .
- 另一项改进是降低了对大城市机场的噪音滋扰因素。
- This secrecy is common among women undergoing reduction to a singleton .
- 经历过减胎的妇女们普遍保守着这个秘密。
- Second , lower levels of participation have led to a reduction in income .
- 其次，课程参与人数的减少导致商学院的收入出现下降。
