His historic performance took place ten years before black singer Marian Anderson performed at the Metropolitan Opera in New York.

VOA: special.2010.03.07

I think she was also an opera singer.

我觉得她可能还是一个歌剧歌手。

麻省理工公开课 - 电影哲学课程节选

Yes, she was an opera singer as well.

对，她也是一个歌剧歌手。

麻省理工公开课 - 电影哲学课程节选

It was the first time a black singer performed regularly with an American opera group.

VOA: special.2009.01.25

The seventy-two year old singer is retired now from opera.

VOA: special.2009.11.30