1.（机器或车辆）出毛病，损坏
If a machine or a vehiclebreaks down, it stops working.
e.g. Their car brokedown.
他们的车子出故障了。
2.（讨论、关系或系统）失败，破裂，失灵
If a discussion, relationship, or systembreaks down, it fails because of a problem or disagreement.
e.g. Talks with business leaders brokedown last night...
昨晚与商界领导人的谈判破裂了。
e.g. Paola's marriage brokedown.
葆拉的婚姻破裂了。
3.分解；将…分成若干部分
Tobreak down something such as an idea or statement means to separate it into smaller parts in order to make it easier to understand or deal with.
break down的解释
e.g. The report breaksdown the results region by region...
报告将调查结果按地区分成若干部分。
e.g. These rules tell us how a sentence is brokendown into phrases.
这些规则告诉我们一个句子是怎样分解成若干短语的。
4.（使）（物质）分解
When a substancebreaks down or when somethingbreaks itdown, a biological or chemical process causes it to separate into the substances which make it up.
e.g. Over time, the protein in the eggshell breaksdown into its constituent amino acids...
时间久了，蛋壳中的蛋白质就会分解为其构成成分氨基酸。
e.g. The oil is attacked by naturally occurring microbes whichbreak itdown.
原油受到了自然产生的分解油类物质的微生物的侵蚀。
5.感情失控（痛哭起来）
If someonebreaks down, they lose control of themselves and start crying.
e.g. Because he was being so kind and concerned, I brokedown and cried...
他如此体贴关心，令我忍不住失声痛哭。
e.g. The young woman brokedown in tears.
这名年轻妇人痛哭流涕。
6.捣毁；拆除
If youbreak down a door or barrier, you hit it so hard that it falls to the ground.
break down
e.g. An unruly mob brokedown police barricades and stormed the courtroom...
一伙暴徒捣毁了警察设置的路障冲进法庭。
e.g. Firemen were called after his father failed tobreak the doordown.
他的父亲没能把门砸开，后来就把消防员叫来了。
7.消除，破除（障碍或偏见）
Tobreak down barriers or prejudices that separate people or restrict their freedom means to change people's attitudes so that the barriers or prejudices no longer exist.
break down
e.g. His early experience enabled him tobreakdown barriers between Scottish Catholics and Protestants.
他早年的经历使他能够消除苏格兰天主教徒和新教徒之间的隔阂。
8. see also: breakdown;broken-down
1. 分解：这样便会使到分裂时出现困难,分解(breakdown)时会释放大量「怒气」,是为放热(exothermic)反应. 当一女子和一位男士相爱时,发现另一位条件更好的男子,而令到原来的男友成为好的离开组合(leaving group),亲核取代反应(nucleophilic substitution)便能发生.
2. break down的近义词
2. 破坏：这种球如果在在高黏度、长油的情形下,可能表现的比较好,但是在球道的平整性不佳,油层薄且稀、再加上空调不足所造成前段油层迅速被后带(Carrydown)甚至被破坏(Breakdown)、与球瓶的重量较轻....等因素都是会造成这种顶级球的反应过度(Overreacting),
正忙的时候，机器偏偏又坏了。
He finally break down under the four-hour's strain.在四小时的压力下他终于支持不了。
Their car broke down.他们的车子出故障了。
Talks with business leaders broke down last night...昨晚与商界领导人的谈判破裂了。
Paola's marriage broke down.葆拉的婚姻破裂了。
The report breaks down the results region by region...报告将调查结果按地区分成若干部分。
These rules tell us how a sentence is broken down into phrases.这些规则告诉我们一个句子是怎样分解成若干短语的。
Over time, the protein in the eggshell breaks down into its constituent amino acids...时间久了，蛋壳中的蛋白质就会分解为其构成成分氨基酸。
The oil is attacked by naturally occurring microbes which break it down.原油受到了自然产生的分解油类物质的微生物的侵蚀。
Because he was being so kind and concerned, I broke down and cried...他如此体贴关心，令我忍不住失声痛哭。
The young woman broke down in tears.这名年轻妇人痛哭流涕。
An unruly mob broke down police barricades and stormed the courtroom...一伙暴徒捣毁了警察设置的路障冲进法庭。
Firemen were called after his father failed to break the door down.他的父亲没能把门砸开，后来就把消防员叫来了。
His early experience enabled him to break down barriers between Scottish Catholics and Protestants.他早年的经历使他能够消除苏格兰天主教徒和新教徒之间的隔阂。
Let's break down the project into smaller parts in order to deal with them one by one.我们把这个计划分成几个小项逐一进行.
You will break down if you take on more work than you can.如果你承担超出你力所能及的工作,身体会垮的.
Bacteria that live in the mouth break down proteins in food, releasing sulphur compounds.口腔里的细菌破坏了食物中的蛋白质, 并且释放硫磺化合物出来.
The police tried to break down the prisoner's opposition.警察设法制住了那个囚犯的反抗.
The mob made a fast and furious attempt to break down the barriers.那群暴民试图迅速猛烈地拆毁障碍.
In particular, they hope to break down the collective defence against antibiotics.换而言之, 化学家们希望打破病原体针对抗生素的联合防御.
PCBs don't break down in soils, water or air, but carry on accumulating.多氯化联苯在土壤中, 水中或空气中都无法分解, 只会继续累积.
Amylases are a family of enzymes found in the saliva that break down starch.存在于唾液中的淀粉酶属于酶的一个系谱,可分解淀粉.
Overtime it can also break down into the soil without giving out any toxic chemicals.而且,它还可以降解,不会产生有毒的化学物质.
工作
A：This will be your office here.
这就是你的办公室。
B：A corner office? Really? Wow, this is great!
一间办公室，真的吗？太棒了！
A：We try to give everyone in the upper management team a nice office. After all, you will be spending a lot of time in here.
我们尽力为高层管理团队中的每个成员安排一间比较好的办公室。毕竟你要在那里呆很长时间。
break down的解释
B：I suppose so. It’s great.
我也这样认为。真不错。
A：On Monday, we’ll give you the keys to the company car. You can use it for personal use, but make sure to keep track of the gas you use. We’ll reimburse you for the upkeep and the gas you use for business.
我们周一会给你公司汽车的钥匙。你可以作为私车使用，但一定要记下用油量。我们会为你报销汽车的保养费和汽车作为公用时的油费。
break down的意思
B：Is there a coffee machine around here?
这附近有咖啡机吗？
A：Yes, we have a coffee machine and some other beverages in thebreak room.
有，休息室里有咖啡机和其他饮料。
break down什么意思
B：Where’s that again?
休息室在哪里呢？
break down
A：It’s justdown the hall, the fourth door on your right.
在大厅下面，你右边的第四间。
break down什么意思
B：Got it.
知道了。
A：You can always call me if you need anything and I will get it for you. That’s one of my duties as your personal assistant.
如果你有什么需要可以随时叫我，我会帮你解决。作为你的私人助理，这是我的部分职责。
