Jackson said her boss became increasingly depressed and reverted to smoking heavily.是什么意思？

Jackson said her boss became increasingly depressed and reverted to smoking heavily.

杰克逊说她的老板情绪越来越低落，又开始拼命抽烟了。

Jackson

n. 杰克逊（美国密西西比州首府）；

例句
Mr Jackson had a natural constituency among American blacks...
杰克逊先生在美国黑人中拥有自发的支持。

said

adj. [律]上述的，少说为妙，（做）某事有/没有很多优点（或好处）：某事物有/没有多少可说的，说到底；v. 说，讲( say的过去式和过去分词 )，表明，念，说明；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

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。

boss

n. 老板，上司，领袖，首领，[机]轴套，套筒；vt. 当…的首领，管理，指挥；vi. 当首领，发号施令；adj. <俚>很好的，一流的；

例句
That is a fair approximation of the way in which the next boss is being chosen.
那和下一任老板的选任方式相当类似。

became

v. 变为，成为（ become的过去式 ）；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

increasingly

adv. 越来越多地，日益，格外，越来越…，愈；

例句
Theirs had been an increasingly attenuated relationship.
他们的关系日益冷淡。

depressed

adj. 情绪低落的，沮丧的，萧条的，下陷的，低的，中间凹下的；v. 压下(depress的过去式和过去分词)，使愁苦，降低（价格），使跌价；

例句
I was a bit depressed by our apparent lack of progress...
我对我们看似缓慢的进展感到有些沮丧。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

reverted

v. 恢复( revert的过去式和过去分词 )，重提，回到…上，<律>归还；

例句
His hair has reverted back to its original copper hue.
他的头发又变回原来的淡红棕色。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

smoking

n. 吸烟，抽烟；v. 冒烟( smoke的现在分词)，抽烟，用烟熏制，吸（烟）；

例句
Cigarette smoking used to be commoner among affluent people.
吸烟曾经在富人中间更为普遍。

heavily

adv. 在很大程度上，沉重地，大量地，缓慢又高声地；

例句
The killer must have been heavily bloodstained.
凶手肯定身上血迹斑斑。