Alcohol and other substance abuse or dependence may also co-exist with depression.

酒精和其他物质滥用或依赖也可以与抑郁症共同出现。

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Additionally, the diagnosis of bipolar disorder can be missed by professionals who think the patient is just suffering from substance abuse or dependence.

同时，也有许多真正的躁郁症患者被误诊为物质滥用或物质依赖。

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Five of the 8 (62%) had a history of major depression, almost all (7 of 8) had a history of alcohol abuse or dependence, while 4 (50%) had a history of other substance abuse or dependence.

8人当中有5个(62%)有忧郁症史，有7个有酗酒或酒精依赖的历史，而4(50%)个有其他物质滥用或依赖的历史。

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