major depressive episode的意思|示意

By age 15, however, girls are twice as likely as boys to have experienced a major depressive episode.23.

但是，从15岁开始，女孩经历重度抑郁发作是男孩的两倍。

By age 15, however, girls are twice as likely as boys to have had a major depressive episode.25.

但是，从15岁开始，女孩经历重度抑郁发作是男孩的两倍。

Researchers implanted electrodes in the brains of 20 people who were in a major depressive episode.

研究人员向20名抑郁症患者的大脑中植入了电极。