1 mechanical failure 机械的故障
*Our car/We had a breakdown on the motorway. 我们的汽车[我们]在高速公路上抛锚了.
2 collapse or failure 瓦解; 失败; 破裂
*a breakdown of negotiations on disarmament 裁军谈判的破裂.
3 weakening or collapse of sb's (esp mental) health 身体（尤指精神）衰弱
*The strain of his job led to the complete breakdown of his health. 他工作过度, 把身体完全累垮了.
* She suffered a nervous breakdown. 她患神经衰弱.
4 statistical analysis 统计分析
*a breakdown of expenditure 支出的统计分析.
n [U and C]
the failure of a relationship or systembreakdown of He moved away after the breakdown of his marriage. A sudden rise in oil prices could lead to a breakdown of the economy.breakdown in There has been a serious breakdown in relations between the two countries.marriage/marital/family breakdown Family breakdown can lead to behavioural problems in children.[C]
a serious medical condition in which someone becomes mentally ill and is unable to work or deal with ordinary situations in life I was worried he might have a breakdown if he carried on working so hard. Two years ago he suffered a mental breakdown . She had already had one nervous breakdown .[C]
an occasion when a car or a piece of machinery breaks and stops working Always carry a phone with you in case you have a breakdown on the motorway.breakdown in a breakdown in the cooling system[C]
a list of all the separate parts of somethingbreakdown of Can you give us a breakdown of the figures? a breakdown of the costs [singular]
the changing of a substance into other substances the breakdown of glucose in the body to release energy