1
reduction in sth
表示在某方面的减少。
The company announced a reduction in staff.
公司宣布裁员。
简化；降低复杂度
reductions — plural of reduction
先理解核心含义，再看它在真实句子里的用法。
简化；降低复杂度
the act of reducing complexity; simplification
The company announced a reduction in staff.
公司宣布裁员。
减少的行为、过程或结果
The act, process, or result of reducing.
减少的数量或幅度,例如价格
The amount or rate by which something is reduced, e.g. in price.
一种获得电子和降低价态的反应；通常通过去除氧或添加氢
A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen.
快速煮沸酱汁以浓缩的过程
The process of rapidly boiling a sauce to concentrate it.
The store offered a 20% reduction on all shoes during the sale.
商店在促销期间对所有鞋子降价20%。
Cycling to work can result in a significant reduction in air pollution.
骑自行车上班可以大幅减少空气污染。
We need to make a reduction in the amount of plastic we use.
我们需要减少塑料的使用量。
表示在某方面的减少。
The company announced a reduction in staff.
公司宣布裁员。
强调减少的行为或过程。
The reduction of waste is a priority.
减少浪费是优先事项。
具体说明减少的数量或百分比。
There was a reduction of 10% in costs.
成本减少了10%。
化学语境中表示被还原。
In the reaction, the iron oxide undergoes reduction to iron.
在反应中，氧化铁被还原成铁。
Not this
We had reduction in sales.
Use this
We had a reduction in sales.
Reduction 作为可数名词时通常需要冠词，如 'a reduction'，表示一次具体的减少。
Not this
The company plans reduction prices.
Use this
The company plans to reduce prices.
Reduction 是名词，不能直接接宾语；应改用动词 reduce 才能后接宾语 prices。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
降价
The store announced a price reduction on all items.
商店宣布所有商品降价。
成本削减
The company implemented cost reduction measures.
公司实施了成本削减措施。
排放减少
There has been a significant reduction in emissions this year.
今年排放量显著减少。
还原反应
The reduction reaction occurs when oxygen is removed.
当氧气被去除时发生还原反应。
裁员
The reduction of staff was necessary to cut costs.
裁员对于削减成本是必要的。
显著减少
The new policy led to a significant reduction in waste.
新政策导致废物显著减少。
裁员
The company announced a reduction in force to cut costs.
公司宣布裁员以削减成本。
Use reductions naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象一个数字在减少，或化学中氧被去掉，就是reduction（减少/还原）。
用于描述数量、大小、价格等的减少，或化学中的还原反应。通常用于学术、商业或技术语境，语域中性。
常与介词in或of搭配，表示在某方面或某物的减少。
Dictionary facts from ECDICT, WIKTIONARY.