much knowledge可數嗎

　　My head is so small, not so much knowledge.

　　我的腦袋那么小，裝不下那么多知識。

　　No one can have too much knowledge and practice.

　　知識和實踐越多越好。

　　You can't learn so much knowledge at one time.

　　你不能一次學那么多知識。