One of the pleasures of reading old letters is the knowledge that they need no answer.knowledge意思
问题描述：
One of the pleasures of reading old letters is the knowledge that they need no answer.knowledge意思
答
阅读古老文学的一大乐趣在于它们不需要任何其他学问来解释.
很绕的一句话,修辞相当不错,我觉得可以这样翻译了