美国的民主走过了一个漫长而艰辛的历程的翻译：United States democracy have gone through a long and difficult process of 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

[object Object]

United States democracy have gone through a long and difficult process of

US's democracy has passed through one long and the difficult course

The democracy of the United States has gone through a long and difficult process

United States democracy have gone through a long and difficult process of