ballad|ballads

她在烛光下演唱了一首感人的民谣。

She sang a touching ___ballad by candlelight.

她最喜欢在睡前听一些舒缓的情歌。

She loves listening to soft ___ballads before going to bed.

这位歌手演唱了一首关于古代英雄的民谣。

The singer performed a ___ballad about an ancient hero.