difficult adj. 困难的；不随和的；执拗的；
例句
It was a very difficult decision to make.
这是个非常难作的决定。
The exam was pretty difficult.
这场考试相当难。
He\'s a difficult man to please.
他是个难以取悦的人。
It\'s difficult to tell them apart.
很难把他们区分开来。
It was a rather difficult question.
这是个相当难的问题。
