There was a profound silence in which everybody sirred uneas

There was a profound silence in which everybody sirred uneasily.帮我翻译下这句话并分析下句型,)

There was a profound silence in which everybody sitted uneasily.
那里有一段很长时间的沉默,在这期间每个人都不安地静坐着.
There was a profound silence 句子主干
（ silence） in which everybody sitted uneasily
silence 做先行词的定语从句