She's the only dream I've had that didn't die in the face of reality.
这个句子,She‘s应为 She has,和后面的I've had 中的 had 对应,都是实意动词,具有、有 的意思.
I've had 修饰dream, 她有我曾经拥有的唯一梦想,that指代dream,也是定语从句,表示 这种梦想（即便）在现实面前也不会消亡.

谢谢!