kuikui题-H3

The steel industry has changed radically over the last two decades, as large, integrated companies such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down together.

The steel industry has changed radically over the last two decades as large, integrated companies, such as Bethlehem Steel, that once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down together.

have greatly downsized是状语吧？

我就是纳闷，have greatly downsized前面为什么没有逗号呢？

我觉得such as 做插入语，that从句修饰companies,所以不需要逗号也可以。

逵逵你一下出了好多题~

我先做饭去了，一会再来探讨~

as large, integrated companies such as Bethlehem Steel

as...such as ，这算什么东东?是固定结构吗？怎么理解？请指教。

偶怎么觉得E 挺顺眼？

The steel industry has changed radically over the last two decades, and large, integrated companies such as Bethlehem Steel

主 谓...,and 主 谓..这个结构错？

不是结构问题。

根据逻辑意思应该是as不是and, 因为这两个句子不是平行关系，而是有点因果关系的意思。