Oh, but, Lady Constantine, if you only knew what it is to a person engaged in science to have the means of clinching a theory snatched away at the last moment!

哦，但是，君士坦丁夫人，如果您只知道对于一个从事科学的人来说，在最后一刻夺走确立理论的手段是什么感觉！

Sometimes there seemed to be but one person engaged, sometimes two; and the vehemence of the voice, low as it was, seemed to indicate either great haste or an agony of spirit.

有时似乎只有一个人在忙，有时两个人；语气虽然低沉，却似乎表明急促或精神上的痛苦。