With unutterable misery, the fettered little King heard the voices and footsteps fade away and die out.

戴着脚镣的小国王听到声音和脚步声渐渐消失，直到听不见。真是说不出的痛苦。

What unutterable pathos was in his voice!

他的声音里有着多么难以形容的哀愁！

After that the blackness of unutterable night.

在那以后，就是无法形容的漫长黑夜了。

In their echoes, there was a tone of unutterable sorrow.

他们波动的回声中带有一种难言的悲哀。

He was silent, and I guessed at his unutterable depression.

他不讲话了，但我猜他有满腔说不出的郁闷。