nervous breakdown

Từ điển Oxford Advanced Learner 8th

ˌnervous ˈbreakdown [nervous breakdown] BrE NAmE (also break·down) noun
a period of mental illness in which sb becomes very depressed, anxious and tired, and cannot deal with normal life
•to have a nervous breakdown
See also: ↑breakdown

Example Bank:
•The stress of her job had brought her to the brink of a nervous breakdown.