He was impenitent — but were not public criminals impenitent?

他不知悔改——但犯不是不知悔改吗？

Another impenitent was named Dewey, a young naval officer.

另一个不知悔改的人名叫威， 是一名年轻的海军军官。

He was done; and there we stood on the landing of the lonely house, the low, thick, eager voice still racing and ringing through our ears; the dead man below, and in front of us his impenitent slayer.

他完成了；我们站在那栋的房子的平台上，那低沉、浑厚、急切的声音仍在我们耳边疾驰而过。下面的死人，以及在我们面前他不知悔改的凶手。