difference和differences的区别

difference
当名词时,可作可数或不可数名词.意思：区别,差异,不同之处
There are many differences between the two languages.
这两种语言有很多不同之处.
There was not really much difference in their points of view.
他们的观点没有多少真正的差别.
再问： There was not really much difference in their points of view. 他们的观点没有多少真正的差别。 为什么这个句子不用differences？
再答： 依我理解，这里的differrence是不可数名词，在认识方面差别不大，(大同小异)而不是有许多不同的观点。