The lack of knowledge is difficult if not impossible to compensate for later on.

知识的缺乏很难甚至不可能在以后得到弥补。

His difficulties issue from his lack of knowledge.

他遇到的困难是由于缺少知识造成的。

Lack of knowledge, on the other hand, can be deadly.

另一方面，缺乏知识可能是致命的。

Complete rationality is limited by lack of knowledge.

完全理性受到了缺乏知识的限制。

Eg: He frankly admitted his lack of knowledge in music.

例： 他坦言自己对音乐懂得不多。

Ignorance is a lack of knowledge, information or education.

无知指的是知识，信息和教育的缺乏。

The lack of knowledge makes you easy for others to manipulate.

知识的匮乏让你容易被人利用。

Accept your lack of knowledge and use it as your asset.

接受你经验上的缺乏，把它当成财富来用。

On the other hand, the lack of knowledge about the import…

另一方面，对有关保护环境的重要性认识不足阻碍了问题的解决。

However, at lower levels there is (a lack of knowledge) of the issue.

然而，从低一点的层面讲，这还是一个有待考虑的问题。