He felt responsible for her lowness of spirits.是什么意思？

He felt responsible for her lowness of spirits.

他觉得自己对她的情绪消沉负有责任.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

felt

n. 毛毡；v. 摸索( feel的过去式和过去分词 )，触，深感，以为；

例句
She felt as if his words had granted her absolution.
她感觉他的那番话好似给她下了道赦令。

responsible

adj. 尽责的，承担责任，负有责任的，懂道理的；

例句
It is accepted wisdom that science has been partly responsible for the decline of religion.
人们普遍认为，科学的兴起是宗教衰落的部分原因。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

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。

lowness

n. 低下，卑贱，微弱；

例句
He took advantage of the lowness of interest rates.
他利用了利息率低的好处.

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

spirits

n. 情绪，兴致，精灵，灵魂，精神( spirit的名词复数 )，情绪，灵魂，神灵；

例句
I hate to dampen your spirits but aren't you overlooking a couple of minor points.
我不想扫你的兴，但你是否忽视了几个小的问题呢？