音标

英 [rɪˈdʌkʃn]；美 [rɪˈdʌkʃn]

意思

名词，意为“减少；降低；缩小；（价格、数量等的）削减；缩图；缩影”，强调在程度、数量、规模等方面的下降或变小。

造句

The company announced a reduction in staff to cut costs.
公司宣布裁员以削减成本。

There has been a significant reduction in air pollution in this city in recent years.
近年来这座城市的空气污染有了显著减少 。

The store is having a sale with a reduction of 20% on all items.
这家商店正在进行促销活动，所有商品都降价20%。

The reduction in prices made these products more affordable for consumers.
价格的降低使这些产品对消费者来说更能负担得起。

We need to aim for a reduction in our carbon footprint.
我们需要致力于减少我们的碳足迹。

The doctor recommended a reduction in salt intake to improve his health.
医生建议减少盐的摄入量以改善他的健康状况。

The reduction of waste is an important part of environmental protection.
减少垃圾是环境保护的重要一环。

The new policy led to a reduction in crime rates in the area.
新政策导致该地区犯罪率下降。

The size reduction of the new phone makes it more portable.
新款手机尺寸的缩小使其更便于携带。

The reduction in noise from the new engine makes the car much quieter.
新发动机噪音的降低使汽车安静了许多。

初学英语怎么运用

口语运用

日常购物交流：在购物场景中，谈论商品折扣时使用。例如：“A: I got this dress at a great price. B: Really? How much was the reduction?（A：我以很划算的价格买到了这条裙子。B：真的吗？降价了多少？）”

讨论生活变化：在日常聊天中，提及生活中数量、程度等方面的减少。比如：“A: Have you noticed any changes in traffic lately? B: Yeah, there seems to be a reduction in the number of cars on the road since the new subway line opened.（A：你最近注意到交通有什么变化吗？B：是的，自从新地铁线路开通以来，路上的汽车数量似乎减少了。）”

写作运用

描述现象：在记叙文或说明文写作里，描述某种减少的现象。例如：“In recent years, there has been a reduction in the use of plastic bags due to increased environmental awareness.（近年来，由于环保意识的提高，塑料袋的使用有所减少。）”

提出建议：在议论文写作中，针对某个问题提出减少某种不良情况的建议。比如：“To solve the problem of overcrowding in schools, a reduction in class sizes is necessary.（为了解决学校过度拥挤的问题，减小班级规模是必要的。）”

学习积累

联想记忆：将 “reduction” 与它的动词形式 “reduce” 联系起来记忆，通过回忆 “reduce” 的用法和例句来更好地理解 “reduction”。例如，记住 “reduce pollution（减少污染）”，进而联想到 “a reduction in pollution”。

阅读积累：阅读英语文章、新闻报道等材料，留意其中 “reduction” 的使用语境和搭配，收集不同类型的例句，增加对该词的熟悉度和运用能力 。