Having been shown around the library,we were taken to see the lab.

问题描述:

Having been shown around the library,we were taken to see the lab.
为什么是“Having been shown”而不是“To show”,做目的状语不可以吗

不可以啊,翻译就不对啊.
如果是目的状语的话就会是
我们被带去看实验室,目的是展示图书馆.
不通