有没有代发贴的:这句话是什么意思啊?

来源:百度文库 编辑:中科新闻网 时间:2024/05/09 15:32:15
However, considering that the surge in trade between china and India and Africa has been mainly driven by commodities, there is a case for further investigating the issue of specializing in commodity extraction by African countries.

就是后面这句:there is a case for further investigating the issue of specializing in commodity extraction by African countries.,这个commodity extraction会是什么呢?应该是跟天然产业有关的。
这儿的there is a case for 我也拿不准是个什么意思?指教一下!!谢谢谢谢

commodity extraction 日用品的抽查检测

there is a case for 这里有这么一个案例