帮忙分析这个英语句子,新概念三第五课最后一句

题目

帮忙分析这个英语句子,新概念三第五课最后一句
However,he had at last been allowed to send a fax in which he imformed the editor that he had been arrested while counting the 1,084 steps leading to the fifteen-foot wall which surrounded the president's palace.这里面的in which引导一个定语从句,请问which在从句里面做什么成分?看自学导读里说in相当于in the fax,我看不懂……能否帮忙把从句抽出来写成单独一个句子,这样好理解.

答案

he had at last been allowed to send a fax in which
你看,which代表a fax,定语从句,翻译为在这个传真中他通知了.
he imformed the editor that he had been arrested while counting the 1,084 steps leading to the fifteen-foot wall which surrounded the president's palace in a tax.相当于方式状语.