It has more than 60 specialized subject libraries as well as the university library,which,as a copyright library,is entitled to a copy of every book published in Britain.1.as well as the university library中as well as=also?2.which怎么前后都有逗号,怎么去理解它在句中的用法?

问题描述:

It has more than 60 specialized subject libraries as well as the university library,which,as a copyright library,is entitled to a copy of every book published in Britain.
1.as well as the university library中as well as=also?
2.which怎么前后都有逗号,怎么去理解它在句中的用法?

=and 或 in addition to
前有,是因为非限制定语从句.后有,是因为接插入语