common knowledge可數(shù)嗎

　　Darwin took the tiniest step beyond common knowledge。

　　達爾文只比常識進步了一小步。

　　This is common knowledge and there's no disputing it。

　　這是常識而且沒有任何爭議。

　　It is common knowledge that the earth moves around the sun。

　　地球繞著太陽轉(zhuǎn)是常識。