The blues grew out of african spirituals and work songs .

布鲁斯乐成长自非洲人的精神和劳动号子中。

Negro spirituals such as " nobody knows the trouble I 've seen " reflect hope in god in the midst of suffering .

像「无人知道我的困难」这样的黑人灵歌，反映出苦难中对上帝的盼望。

And as the people were converted to christianity , they composed lovely spirituals which have become a permanent part of american music .

当他们成为基督教徒时，他们创作了优美的黑人灵歌现已成为美国音乐永恒的一部分。

Negro spirituals , such as " nobody knows the trouble I 've seen , " reflect hope in god in the midst of suffering .

像“无人知道我的困难”这样的黑人灵歌，反映出苦难中对上帝的盼望。

They sang african folk songs and spirituals to express their feelings about their hard lives .

他们唱的是非洲当地民歌以及抒发他们精神上压抑的艰苦生活。