difficult什么意思、怎么读？单词用法、记忆法、发音音标、反义词同义词辨析、释义

It's difficult to relate cause and effect in this case.

这个案件中的动机和结果很难联系起来。

University was difficult for me, but I graduated eventually.
大学对我来说是困难的，但是我终于毕业了。


This could be one of the most difficult methods to get to the other side.
这个大概是从这儿到那儿最难的方式了。


The clever boy can figure out any difficult math problem.
这个男孩聪明极了，可以解出很难的数学题。

I asked him a difficult question.

我问了他一个很难回答的问题。

※Poverty is an abnormality to rich people. It is very difficult to make out why people who want dinner do not ring the bell.——Walter Bagehot, Buetish economist  对于富人来说，贫穷是不可理解的异常现象：他们怎么也弄不明白，那些想要吃饭的人，为什么不摇铃让人送来呢？英国经济学家巴杰特.W.  
※Only those who have the patience to do simple things perfectly ever acquire the skill to do difficult things easily . (Friedrich Schiller , German Dramatist and poet).——只有有耐心圆满完成简单工作的人，才能够轻而易举地完成困难的事。(德国剧作家、诗人 席勒. F.)  
※To acquire wealth is difficult, to preserve it more difficult, but to spend it wisely most difficult of all. 积财难，守财最难，而聪明地散财最难。
※Singularity is almost invariably a clue. The more featureless and commonplace a crime is , the more difficult is it to bring it  home.