求英语难句分析做六级阅读时碰到一个句子,搞不懂.求英语达人分析句子结构并翻译.outside在这是介词吗?have be

一下子,他或者她已经做了一些事（has done something）,that至最后是一个定语从句,修饰是一些什么样的事
a passing acquaintance with 对……的泛泛之交 in charg for 负责
that those of us outside government with more than a passing acquaintance with technology
我们这些政府以外的,对技术只有比泛泛了解多一点点的人
have been those in charge for quite some time.
已经对这件事负责很长一段时间了.
所以这段话翻译起来应该是：一下子,他或她做了一些我们这些政府以外的,对技术只有比泛泛了解多一点点的人已经负责了很长时间的事.
have been的主语是those of us ；outside是介词

At a stroke, he or she has done something ｛that those of us（ outside government ）(with more than a passing acquaintance with technology) have been those} in charge for quite some time.
我的理解，不知道对错...