英语语法分析

Until around 1930 few United States Civil War historians paid much attention to Southerners who opposed the 1861-1865 secession from the United States by a confederacy of Southern states.

直到1930年，很少有美国内战历史学家关注那些反对1861至1865年南方各州联盟脱离美国的南方人。

Its agreed secession would not be unprecedented.

这种双方同意的分离并非史无前例。

A majority of the delegates refused to vote for secession.

绝大多数代表拒绝为脱离联邦而投票。