名詞 breakdown:

1. the act of disrupting an established order so it fails to continue
   同義詞：dislocation
2. a mental or physical breakdown
   同義詞：crack-up
3. a cessation of normal operation
   同義詞：equipment failure
4. an analysis into mutually exclusive categories
   同義詞：partitioning

1. Unless he stops driving himself like this he'll have a breakdown.
   他要是總這樣拚命干下去是吃不消的。
2. He couldn't hold down a job after his breakdown.
   他病倒以後，工作也就保不住了。
3. His frequent depressions were the prelude to a complete mental breakdown.
   他經(jīng)常抑郁寡歡，後來精神完全崩潰了。

break.down

n.（名詞）

The act or process of failing to function or continue.
損壞，停止運動：不起作用或不再繼續(xù)的行為或過程
The condition resulting from this:
故障：由此而致的狀況：
例句：
a breakdown in communication.
通信故障

Electricity The abrupt failure of an insulator or insulating medium to restrict the flow of current.
【電學】 擊穿：絕緣體或絕緣介質(zhì)突然無法制止電流通過
A typically sudden collapse in physical or mental health.
衰竭：典型的身體或精神健康的突然衰弱
An analysis, an outline, or a summary consisting of itemized data or essentials.
分析，概要：一個包含逐條列出的數(shù)據(jù)或要素的分析、綱要或總結(jié)
Disintegration or decomposition into parts or elements.
分解（作用）：分解或分裂為部分或要素
A noisy, energetic American country dance.
跺腳拽步舞：一種喧鬧、輕快的美國鄉(xiāng)村舞蹈