题目内容：

系动词后面后面直接加副词的疑惑?
The criminal justice system is not simply a pipeline from under-funded schools to overcrowded jails!
系动词后面不是不可以直接加副词吗?而在这里却是可以直接用 simply
这句也是同样的情况：The table is simply a chipboard circle on a base