He noted that the country had been half-slave and half-free for seventy years.

VOA: special.2009.06.11

And many people have noted that it's the spirituals, the slave spirituals, that express perhaps the most authentic forms of Christian faith that this country has produced.

很多人都注意到，圣歌，黑人圣歌，或许是美国历史上表达基督信仰的,最真诚的形式。

普林斯顿公开课 - 人性课程节选

And many people have noted that it's the spirituals, the slave spirituals, that express perhaps the most authentic forms of Christian faith that this country has produced.

很多人都注意到，圣歌，黑人圣歌，或许是美国历史上表达基督信仰的,最真诚的形式。

普林斯顿公开课 - 人性课程节选