The dog then attacked her, inflicting serious injuries.是什么意思？

The dog then attacked her, inflicting serious injuries.

然后那条狗袭击了她，把她咬成重伤。

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。

dog

n. 狗，蹩脚货，丑女人，卑鄙小人；v. 困扰，跟踪；

例句
He dropped his sausage on the pavement and someone's dog ate it, mustard and all.
他把香肠丢在人行道上，不知是谁家的狗将香肠甚至连带芥末都吃个了精光。

then

adv. 那时，然后，那么，话说回来；adj. 当时的，那时的；

例句
Liz adjusted her mirror and then edged the car out of its parking bay.
莉兹调了调后视镜，将车子挪出了停车位。

attacked

v. 攻击，进攻，抨击( attack的过去式和过去分词 )，非难，损害；

例句
He was attacked by wild animals...
他遭到野兽的袭击。

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。

inflicting

v. 把…强加给，使承受，遭受( inflict的现在分词 )；

例句
Adhering to the new rules meant inflicting serious damage on motor racing.
遵守新的规定就意味着赛车比赛将遭受严重影响。

serious

adj. 严肃的，严重的，认真的，庄重的，重要的，危险的；

例句
She was involved in a serious car accident last week...
上星期她卷入了一场严重的车祸。

injuries

n. 伤害，损害( injury的名词复数 )，受伤处；

例句
The houses were set afire but there were only minor injuries to seven personnel...
房子着火了，但是只有7位职员受轻伤。