Her depression was misdiagnosed as stress.是什么意思？

Her depression was misdiagnosed as stress.

她的抑郁症被误认为是紧张。

her

pron. (she的宾格)她，(she的所有格)她的，她，指某个国家，（一艘）船；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

depression

n. 萎靡不振，沮丧，下陷处，坑，衰弱，减缓；

例句
It seems as if the blanket of depression is in some way necessary to help them blot out the even greater pain of real life...
似乎这种弥漫的抑郁情绪多少能帮助他们忘却一些现实生活中更大的痛苦。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

misdiagnosed

[医]误诊的；

例句
Results OSAHS can be misdiagnosed as primary hypertension , arrhythmia, asthma, acalcerosis and some other diseases.
结果　OSAHS易被误诊为原发性高血压 、 神经官能症、儿童弱智、缺钙、心律失常 、 哮喘等.

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

stress

n. 强调，重音，压力，重力；vt. 重读，[机械学]使承受压力，给…加压力（或应力）；

例句
This book teaches you how to analyse what is causing the stress in your life.
这本书教你分析生活压力形成的原因。