It took 500workers 100 days to build the fine model, not to mention the thousands ofpeople inside.
这是译林版高中英语新教程必学二第1单元的一个句子。
not to mention…的意思我了解，它表示“更不需要说”。如：
The weather hereis gorgeous, not to mention the wonderful food. 这里的天气太好了，更不需要说美食了。
We were cold,wet, and hungry, not to mention [=and also] extremely tired. 大家都淋湿了，又冷、又饿，更别说极度疲劳了。
He has two bighouses in this country, not to mention his villa in France.他在这个国家有两座大房屋，更别提他在法国的别墅了。
我的疑问是：not to mention…短语在句子中作什么成分？假如说是状语？那是什么状语？
not to mention = In addition to, besides what's already been said。
依据夸克，这应该是评注性状语，是说话人对自己句子的评论或讲解。
根据剑桥英语语法的剖析，这个不定式可以剖析为补充语，对前面句子作补充。
其实，假如你不是英语老师的话，你理解了句子的意思,并且会模仿用就足够了，至于这个不定式短语干什么成分又有哪些重要程度呢？
