have difficulty in doing(with) 做某事有困难：其中difficulty是不可数名词；可换为trouble ; problem; fun等。

  (1) difficulty (通常作复数) 难事，难点，难题She met with many difficulties when travelling.

  (2) 在以下句型中，difficulty是不可数名词，不能用复数形式。

  have (some) difficulty (in) doing sth.

                                    干某事有困难

there is (some) difficulty (in) doing sth.

  have (some) difficulty with sth.     

在某事上有困难

  there is (some) difficulty with sth.

  do sth. with difficulty / without difficulty 困难地／轻而易举地做某事

  We had a lot of difficulty in finding your house.

  Do you have any difficulty with your English?

  【注意】

(1) 以上句型中，difficulty前可加some, little, much, a lot of, no, any修饰

(2) 以上句型中，亦可用trouble来代替difficulty。

have difficulty/trouble (in) doing sth.; with sth.

eg. 1. Did you have difficulty in finding your way?

       2. He has some difficulty with pronunciation.