1.
a muddled explanation which was scarcely intelligible
难以理解的胡涂解释.
2.
Difficult to perceive or grasp by the mind.
难懂的难以理解的或隐晦难懂的
3.
unfathomablemotives, mysteries
难以理解的动机、 奥秘.
4.
Philosophy: unintelligible answer to insoluble problem.
哲学：是对难以解释的问题作出难以理解的答案。
5.
Philosophy:unintelligible answers to insoluble problems.
哲学：是对难以解释的问题作出的难以理解的答案。
6.
not apprehensible even to professional men
连专门家也难以理解的(东西)
7.
technical expressions that areincomprehensible to ordinary people
普通人难以理解的技术用语.
8.
the quality of being unclear or abstruse and hard to understand.
不清楚深奥难以理解的特点。
9.
What you wrote is out of my range
你所定的我难以理解。
10.
beyond belief or understanding.
难以置信或者难以理解。
11.
His reasoning went beyond us
他的推理使我们难以理解。
12.
It's difficult for the young people to accustom to the elderly people's ideas.
年轻人难以理解老年人的心理。
13.
To read or interpret(ambiguous, obscure, or illegible matter.
解读解读（含混、难以理解或无法辨认的东西）
14.
a knotty problem, question, etc
难以解决的疑难、 问题等.
15.
making great mental demands; hard to comprehend or solve.
需要极大的心理上的努力；难以理解或者解决。
16.
It is a most inscrutable and unmitigated staggerer!
这倒是一个难以理解和无法弄清楚的难题。
17.
It is difficult to understand his essays much more his books.
他的文章尚且难以理解，何况他的书。
18.
His difficult style obscured his meaning
深奥的文体使人难以理解他的意思。