Go back and give me the nocturne over again.

回去把夜曲给重一遍。

Play me a nocturne, Dorian, and, as you play, tell me, in a low voice, how you have kept your youth.

给弹一首夜曲，道连，边弹边小声告诉你是如何保持青春。

A " nocturne" (nocturne) is a piece of classical music that is usually written in something of, I guess we would call, a dreamy, perhaps slightly dark style.

“夜曲”（夜曲）是一段古典音乐，通用某种东西写成，想们会称之为，梦幻般，也许有点黑暗风格。

I checked my step, hoping, and in a minute or two the musician began to play that nocturne of Chopin which I love best — I don't know how to name it.

检查了脚步， 满怀希望，一两分钟后， 音乐家开始演奏欢肖邦夜曲——不知道如何命名。

The previous evening she had played a nocturne, and as I passed the open door of the drawing room, I'd watched for a moment as Mr. Gopnik sat down beside her on the stool.

前一天晚上她演奏了一首夜曲，当经过客厅敞开门时， 看到戈普尼克先生在她身边凳子上坐了下来。