knowledges可数吗

knowledge是不可数名词，可表示“了解，知道”或“知识，认识，学问”等。有时在knowledge前可直接加上不定冠词a，表示“对…有某种程度的了解或熟悉”。

He had an encyclopedic knowledge of drugs.

他有渊博的药品知识。

I was amazed at the extent of his knowledge.

他知识之渊博令我惊奇。

The boy\'s knowledge was out of the ordinary.

这个男孩的知识面非同寻常。

It is beyond the confines of human knowledge.

这超出了人类的知识范围。

He had only a rudimentary knowledge of French.

他只有最基本的法语知识。