1.
It is often difficult for visitors to understand Americans'lack of desire for privacy.
美国人无静居独处之念，往往是游客难以了解的。
2.
How can they stand those unpredictable gals, and accept how they are.
他不解为什么有的男生愿意任劳任怨地对待难以了解的女生。
3.
A: I don't understand Mr. Chen. He never smiles or laughs. B: I know! He's a hard nut to crack.
我真不理解陈先生。他从来不笑。B:我知道。他是个难以了解的人。
4.
The lang-standing difficult problem of measuring tiny leakage for cosmetic blow head has been solved.
解决了长期以来喷头微泄漏难以检测的难题。
5.
a knotty problem, question, etc
难以解决的疑难、 问题等.
6.
He find it difficult to get his idea across to them.
他发现他难以使他们了解他的想法。
7.
He found it difficult to get his idea across to them
他发现他难以使他们了解他的想法
8.
a muddled explanation which was scarcely intelligible
难以理解的胡涂解释.
9.
Difficult to perceive or grasp by the mind.
难懂的难以理解的或隐晦难懂的
10.
The difficulty in selling this item is getting across to the potential customer that the higher quality justifies the higher price.
推销这种货物的困难是难以使可能买的顾客了解优质优价的道理。
11.
gave an incredible explanation of the cause of the accident.
对事故发生的原因作了令人难以置信的解释
12.
He clarified the difficult problem by giving a full explanation.
他以一个完满的解说阐明了那个困难的问题。
13.
The difficulty in selling this item is getting it across to the potential customer that the higher quality justfies the higher price.
推销这种货物的困难是难以使潜在顾客了解优质优价的道理。
14.
What you wrote is out of my range
你所定的我难以理解。
15.
an implausible explanation
令人难以相信的解释
16.
unfathomablemotives, mysteries
难以理解的动机、 奥秘.
17.
cut the Gordian knot
以坚决的手段解决难题
18.
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。