帮帮手翻译一下句子...谢绝机翻 to be sure ,there are some economists who belive that the rapid growth of the regions during 19C was due to very favorable internal conditions,with trade paying only an important supportive role.
可以确信,一些经济学家相信十九世纪区域快速增长得益于非常理想的内部条件,而贸易只起到了一个重要的支持作用. (to be sure是确定的意思,经济学家的观点是 强调内部条件是主因,而贸易只是辅助.这里感觉应该是playing only an importment supportive role,只扮演了一个重要的支援辅助角色.而作者的观点应该是对此不认同的.)