manic-depressive illness

同根派生

There are nearly 54 million people around the world with severe mental disorders such as schizophrenia and bipolar affective disorder (manic-depressive illness),.
全世界约有5400万精神分裂症和双相情感障碍（躁狂忧郁症）等严重精神疾患患者。
Bipolar disorder, also known as manic-depressive illness, is a serious psychiatric disorder that causes wide shifts in a person's mood, energy, and ability to function.
双向情感障碍也称为躁狂抑郁症，是一种严重影响患者情绪，精力和能力状态的精神疾病。
Over time a person may suffer more frequent (more rapid-cycling) and more severe manic and depressive episodes than those experienced when the illness first appeared.4But
随着时间推移，患者会遭遇比首次患病更为频繁的（更快速循环）而且是更为激烈的躁狂和抑郁。