People with bipolar disorder tend to have manic phases and depressed phases in their lives.
双相情感障碍患者往往在其生活中会有躁期和郁期。
2
Bipolar disorder, also called manic-depressive illness, is not as common as major depression or dysthymia.
双相情感障碍，也叫做躁郁症，并不像重度抑郁症或心境恶劣一样普遍。
3
Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in a person's mood, energy, and ability to function.