She had decided to confront Kathryn with what she had learnt...是什么意思？

She had decided to confront Kathryn with what she had learnt...

她决定拿自己了解的事实与凯瑟琳当面对证。

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。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

decided

adj. 清楚的，坚决的，明显的，明白无误的；v. 下决心( decide的过去式和过去分词 )，（使）决定，解决，裁决；

例句
The scheme's investors, fearful of bankruptcy, decided to abandon the project.
因为担心破产，该计划的投资者决定放弃这个项目。

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。

confront

vt. 面对，使面对面，使对质，碰到，遇到，比较；

例句
...a criminal proceeding where defendants have the right to confront their accusers.
被告有权与原告对质的一种刑事诉讼

Kathryn

[女子名] 凯思琳 Catherine的变体昵称Karen,Karin,Kate,Kathie,Kathy,Katie,Katy,Kay,Kittie,Kitty，[地名] [加拿大、美国] 凯瑟琳；

例句
The gentleman, despite his advanced years, helped Kathryn back to her seat.
这位绅士，尽管年事已高，仍然帮着凯瑟琳回到座位上。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

what

pron. （用以询问某人或某事物的词）什么，多少，…的事物；adj. …的（事物或人）；adv. （用于感叹句中）；int. （用以表示不相信或惊奇），（用以表示未听清楚对方说的话）；

例句
How big is the abyss between what you think you are and what you actually are?
你对自己的认识和真实的你之间差别到底有多大？

learnt

v. 学习( learn的过去式和过去分词 )，学会，得知，记住；

例句
She'd learnt to be herself and to stand up for her convictions.
她已经学会了按自己的方式行事，坚持自己的信仰。