工作
1. （机器或车辆）出毛病，损坏
If a machine or a vehicle breaks down, it stops working.
2. （讨论、关系或系统）失败，破裂，失灵
If a discussion, relationship, or system breaks down, it fails because of a problem or disagreement.
3. 分解；将…分成若干部分
To break 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.
4. （使）（物质）分解
When a substance breaks down or when something breaks it down, a biological or chemical process causes it to separate into the substances which make it up.
5. 感情失控（痛哭起来）
If someone breaks down, they lose control of themselves and start crying.
6. 捣毁；拆除
If you break down a door or barrier, you hit it so hard that it falls to the ground.
7. 消除，破除（障碍或偏见）
To break 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.
8. see also: breakdown;broken-down
1. collapse due to fatigue, an illness, or a sudden attack
Synonym: collapse
2. separate (substances) into constituent elements or parts
3. stop operating or functioning
e.g. The engine finally went
The car died on the road
The bus we travelled in broke down on the way to town
The coffee maker broke
The engine failed on the way to town
her eyesight went after the accident
Synonym: failgo badgive waydiegive outconk outgobreak
4. make a mathematical, chemical, or grammatical analysis of
break down into components or essential features
e.g. analyze a specimen
analyze a sentence
analyze a chemical compound
Synonym: analyzeanalysedissecttake apart
5. make ineffective
e.g. Martin Luther King tried to break down racial discrimination
Synonym: crush
6. cause to fall or collapse
7. lose control of one's emotions
e.g. When she heard that she had not passed the exam, she lost it completely
When her baby died, she snapped
8. fall apart
e.g. the building crumbled after the explosion
Negotiations broke down