They were perplexed by her response.是什么意思？

They were perplexed by her response.

她的答复令他们困惑不解。

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

perplexed

adj. 困惑的，糊涂的，复杂的，杂乱的；v. 使迷惑，使混乱( perplex的过去式和过去分词)，使复杂化，使难办；

例句
It perplexed him because he was tackling it the wrong way.
由于处理不当，这个问题令他大伤脑筋。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

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。

response

n. 反应，回答，答复，[宗]回应经文，应唱圣

例句
The general response was one of understandable bafflement.
大家的反应是感到困惑，这一点情有可原。