the mid-1980s brought one inquiry after another i

问题描述:

the mid-1980s brought one inquiry after another i
nto the causes of America's industrial decline.求大神翻译并划分句子成分!

上世纪80年代中叶,(有关方面)对美国工业衰退的起因展开了一系列的调查.
这是个简单句,成分有什么问题?基础很差,不会划分主语 the mid-1980s+谓语动词 brought+宾语 one inquiry after another+宾补 into the causes of America's industrial decline