同学你好，该知识点来自沪江网校《新概念英语1、2、3、4册连读【双11专享班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
with black stockings介词短语修饰two others作后置定语
over their faces介词短语修饰black stockings 作后置定语

with thousands of pounds worth of diamonds 伴随状语，修饰had got away
thousands of pounds worth of diamonds 名词短语作with的宾语

worth of价值……的……，这里worth是名词。
I went and bought about six dollars' worth of potato chips.
我去买了价值约六美元的土豆片。  

祝同学学习进步~