词根:

dif 表否定 + fic 做 -> 不好做的 -> difficult 难搞的

adj. 困难的不随和的执拗的The exam was pretty difficult.

这场考试相当难。

The exam was fairly difficult.

这场考试相当难。

The exam was quite 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。