reduce sth
常用于及物，直接接名词宾语。
We need to reduce our expenses.
我们需要减少开支。
减少；降低
reducing — present participle of reduce
简化；使简单化；使降级；使衰弱；化简；约分；降低某物的大小、数量、质量、价值或强度；减少,降低。；减轻体重。
cut down on; make a reduction in
降低某物的大小、数量、质量、价值或强度；减少,降低。
To bring down the size, quantity, quality, value or intensity of something; to diminish, to lower.
减轻体重。
To lose weight.
降级；贬低,降职。
To bring to an inferior rank; to degrade, to demote.
使谦卑；征服；制服；捕获。
To humble; to conquer; to subdue; to capture.
使陷入更差的状态或境况。
To bring to an inferior state or condition.
被迫(做自己认为不值得的事情)。
To be forced by circumstances (into something one considers unworthy).
通过煮沸减少(食物)中的水分含量。
To decrease the liquid content of (a food) by boiling much of its water off.
增加电子/氢或去除氧。
To add electrons / hydrogen or to remove oxygen.
通过冶炼去除矿石中的非金属元素以生产金属。
To produce metal from ore by removing nonmetallic elements in a smelter.
简化方程或公式而不改变其值。
To simplify an equation or formula without changing its value.
将问题的解法用另一种(已知)算法表达。
To express the solution of a problem in terms of another (known) algorithm.
将三段论转换为更清晰或更简单的形式。
To convert a syllogism to a clearer or simpler form.
转换为书面形式。(用法说明:此动词几乎总是以“reduce to writing”的形式出现。)
To convert to written form. (Usage note: this verb almost always appears as "reduce to writing".)
进行复位；将骨折或脱位恢复至正确对齐。
To perform a reduction; to restore a fracture or dislocation to the correct alignment.
从(一个方阵)重新排列成一行或一列。
To reform a line or column from (a square).
从工资单上除名。
To strike off the payroll.
通过法律手段废除。
To annul by legal means.
用较少的努力发音(一个音或单词)。
To pronounce (a sound or word) with less effort.
一般现在时
I reduce my sugar intake.
我减少糖的摄入。
一般过去时
She reduced the price yesterday.
她昨天降低了价格。
现在完成时
They have reduced waste significantly.
他们已大幅减少浪费。
规则动词，过去式和过去分词加-ed。
We need to reduce our energy consumption at home.
我们需要减少家里的能源消耗。
用法提示：reduce 作及物动词，表示“减少”，后接宾语 energy consumption。
The new law reduces the use of plastic bags in supermarkets.
新法律减少了超市塑料袋的使用。
用法提示：reduce 作及物动词，第三人称单数形式，表示“减少”，后接宾语 the use of plastic bags。
She has reduced her coffee intake to two cups a day.
她已将每天喝咖啡的量减少到两杯。
用法提示：reduce 作及物动词，现在完成时，表示“减少”，后接宾语 her coffee intake。
常用于及物，直接接名词宾语。
We need to reduce our expenses.
我们需要减少开支。
表示使变成更糟糕的状态。
The fire reduced the house to ashes.
大火把房子化为灰烬。
表示减少的具体幅度。
The company reduced its workforce by 20%.
公司裁员20%。
更强调数量或数值的减少，常用于统计数据
侧重程度或强度的降低，不可直接替换所有reduce用法
口语化且语气更强，常用于成本或预算的减少
强调使某物处于更低的位置或水平，常用于价格或数量
grammar · medium
易错句子We should reduce on the expenses.
正确表达We should reduce the expenses.
Reduce 是及物动词，直接跟宾语，不需要介词 on。
grammar · medium
易错句子The number of students reduced this year.
正确表达The number of students decreased this year.
表示数量减少时，通常用 decrease 作不及物动词，而 reduce 作及物动词更常见。这里需要不及物动词，所以用 decreased。
反义，指数量或程度上的增加
decrease通常指数量或程度的逐渐减少，强调过程；reduce强调人为使降低或减少，也可指使陷入更差状态。
diminish更正式，指逐渐变小或变弱，常与抽象名词连用；reduce常用于具体数量或水平的降低。
降低成本
The company is trying to reduce costs by improving efficiency.
公司正试图通过提高效率来降低成本。
减少浪费
We should reduce waste to protect the environment.
我们应该减少浪费以保护环境。
降低风险
Diversification can help reduce risk in investment.
多元化可以帮助降低投资风险。
减少排放
Many countries are working to reduce carbon emissions.
许多国家正在努力减少碳排放。
减轻压力
Listening to music can help reduce stress.
听音乐有助于减轻压力。
减少……的数量
She decided to reduce the amount of sugar in her diet.
她决定减少饮食中的糖分。
与减少废物相关，常出现在环保话题中
提高效率通常意味着减少资源消耗
烹饪中通过慢炖减少液体
减少碳排放是环保领域的常见搭配
降低成本是商业中减少开支的常见说法
使哭泣
The harsh criticism reduced her to tears.
严厉的批评使她流泪了。
化为灰烬
The entire building was reduced to ashes in the fire.
整栋建筑在大火中化为灰烬。
使沉默
His stern look reduced the children to silence.
他严厉的表情使孩子们安静下来。
减少，再利用，再循环。
We must reduce waste to protect the environment.
我们必须减少浪费以保护环境。
Dictionary facts from ECDICT, WIKTIONARY.