what the whole story is behind the Tristero and the post horn.

弄明白特里斯特罗和驿车背后的整个故事
"Granddaughterly."

像孙女一样
It's a role she occupies with great ease.

是她轻而易举扮演的一个角色
A last example, on 122.

最后一个例子在122页
This is when she's going to meet Emory Bortz:

当她打算去见埃默里·伯茨时
Oedipa showered, put on a sweater, skirt and sneakers,

奥狄芭洗了澡穿上毛衣裙子和运动鞋
wrapped her hair in a student-like twist,

把头发梳成学生辫
went easy on the makeup.

又慢条斯理得化了妆
These are her resources: makeup, clothes, hair.

化妆品衣服发式都是她的宝贝
With them she can occupy all these different roles,

有了它们她可以扮演所有不同的角色
and in doing so she has access to certain kinds of knowledge.

在这个过程中她可以获得某些知识
Her roles are as fluid, in some ways, as Pierce's were.

在某些方面她的角色跟皮尔斯一样不固定