1、They is of the opinion that incomprehensibility is the reader's fault.
他們認為，看不懂是讀者的過失。

2、incomprehensibility as a result of not being clear
作為一個不清晰的結論是不可理解的。

3、incomprehensibility as a result of not being clear.
作為一個不清晰的結論是不可理解的。

4、incomprehensibility resulting from obscurity of meaning.
由于意思含糊而不能理解。