词典释义：
make smaller or less in amount, degree, or size
减少（数量），降低（程度），缩小（规模）
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the need for businesses to reduce costs 公司降低成本的需要
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the workforce has been reduced to some 6,100 职工总数已被减至６，１００人左右
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[as adj.
reduced ]a reduced risk of coronary disease .降低了的冠心病风险。
[no obj.]become smaller or less in size, amount, or degree
（规模）缩小，（数量）减少，（程度）降低
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the number of priority homeless cases has reduced slightly .被优先照顾的无家可归者人数已微幅下降。
boil (a sauce or other liquid) in cooking so that it becomes thicker and more concentrated
慢煮使（调味汁等液体）浓缩变稠。
[no obj.]
〈主 北美〉 （尤指通过节食）减轻体重，减肥
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by May she had reduced to 9 stone .到五月份她的体重已减至九英石。
〈古〉 攻克，征服（尤指围攻并占领城镇或要塞）。
【摄】 减薄（底片或图片）。
【语音】 弱化。
(
使（某人／事）降至（某种状态、境地或角色）
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she has been reduced to near poverty 她沦落到几乎一无所有
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the church was reduced to rubble .教堂成了一堆碎石。
(
（人）被逼无奈，走投无路
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ordinary soldiers are reduced to begging .普通士兵被迫行乞街头。
make someone helpless with (an expression of emotion, especially with hurt, shock, or amusement)
使无法不表露某种神情（尤指受屈、受惊或感到有趣）
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Olga was reduced to stunned silence .奥尔加被吓得一言不发。
force into (obedience or submission)
使顺从；使屈服
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he succeeds in reducing his grandees to due obedience .他成功地使他的大公们服服帖帖。
(
使改变形式；使还原
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it is difficult to understand how lava could have been reduced to dust .很难理解熔岩是如何变成灰的。
present a problem or subject in (a simplified form)
归纳，简化
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he reduces unimaginable statistics to manageable proportions .他的工作是把不可思议的统计数据简化到可操作程度。
convert a fraction to (the form with the lowest terms)
将分数约到（最小项）。
【化】 使还原。
undergo or cause to undergo a reaction in which electrons are gained from another substance or molecule
（使）进行还原反应。 <Bold>OXIDIZE</Bold> 的反义词。
restore (a dislocated part) to its proper position by manipulation or surgery
使（脱臼，断骨）复位。
remedy (a dislocation) in such a way
治疗（脱臼，断骨）。
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reduced circumstances used euphemistically to refer to the state of being poor after being relatively wealthy ［委 婉表达从富到穷］ 生活窘迫 a divorcee living in reduced circumstances 生活拮据的离婚者 -
reduce someone to the ranks demote a non-commissioned officer to an ordinary soldier 把军士降为普通士兵
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reduce sth 减少/降低某物
真题例句：
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reduce the risk of ... 降低...的风险
真题例句：
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reduce sb to + 名词 使某人陷入...
真题例句：
"late Middle English： from Latin
