英语 请问这里single作何解释?

问题描述:

英语 请问这里single作何解释?
I have possessed that heart,that noble soul,in whose presence I seemed to be more than I really was,because I was all that I could be.Good heavens!Did then a single power of my soul remain unexercised?
照文意single应作每种解释吧?但single似乎没有这个意思啊?

single这里的意思是单一的,唯一的
那么我心中有一种唯一的力量仍未使出来吗?