She had a past medical history of depression, but had never experienced hypomania previously.
She had a past medical history of depression, but had never experienced hypomania previously.
她既往曾有抑郁史，但从来没有发生过躁狂症。
She had a past medical history of depression, but had never experienced hypomania previously.
她既往曾有抑郁史，但从来没有发生过躁狂症。