He is a very popular folk singer.

他是一位很受欢迎的民歌手。

She is a folk singer.

她是一个民谣歌手。

She was a folk singer.

她成了一位民谣歌手。

At first I know her as a famous folk singer.

我一开始所认识的她是一名有名的名族声乐歌手。

She was at a meeting with her fiance, the folk singer.

她正在同她那位当民族歌手的 未婚夫 幽会。