Question

这个句子中第二个that是指什么，that后的句子主干和修饰成分是什么，整个句子怎么翻译

I was living in so much frustration that that was my escape to go to school,and get ahead and do better.

Answer 1

翻译 我一直生活的如此的挫败，以至于去上学然后（努力）向前做到更好都是我的一种逃避。
第一个that 是 so ..that ..的一部分
第二个that做形式主语，指的是 go to school,and get ahead and do better. 这部分
that was my escape to go to school,and get ahead and do better.
实际上就是：go to school,and get ahead and do better was my escape.
主干一目了然 没有什么修饰

Answer 2

第二个that是形式主语，代替go to school,and get ahead and do better；翻译如下： 我一直生活得如此沮丧，去学校，努力变优秀并成功只是我的逃避。