人们常听他唱外国歌曲。

He was often heard to sing foreign songs.

学唱一些常备的声乐曲目，以中国歌曲为主，加入外国歌曲为辅以丰富多元文化生活。

Learning to sing vocal repertoire, most of them in Chinese, and add a little portion in foreign language to enrich diversity-culture lives.