She warbled as she worked.是什么意思？

She warbled as she worked.

她边工作边用颤音唱歌。

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。

warbled

adj. 经过调频的；v. 鸟鸣，用柔和的颤声唱( warble的过去式和过去分词 )；

例句
She warbled as she worked.
她边工作边用颤音唱歌。

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。

worked

adj. 处理过的，作装饰用的；v. （使）工作( work的过去式和过去分词 )，（使）运作，运转，（使）产生效果；

例句
The women who worked in these mills had begun to agitate for better conditions.
在这些工厂里做工的妇女们开始抗议要求改善工作条件。