She slept the sleep of exhaustion.是什么意思？

She slept the sleep of exhaustion.

她因疲劳而酣睡。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

slept

v. 睡觉（ sleep的过去式和过去分词 ）；

例句
I hardly slept at all and felt pretty awful...
我基本上没睡，觉得很难受。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

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

sleep

vi.& link-v. 睡，睡觉；vi. 睡，睡觉，睡眠状态；vt. 为…提供床位，提供住宿，以睡觉打发日子；n. 睡眠；

例句
Their sleep is regularly disturbed by the sound of gunfire as criminal gangs settle their nightly accounts.
他们经常被黑帮每晚火拼的枪声所吵醒。

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。

exhaustion

n. 疲惫，衰竭，枯竭，用尽，排空，彻底的研究；

例句
He had complained of exhaustion after his gruelling schedule over the past week...
完成上周紧张的日程安排后，他抱怨自己累得筋疲力尽。