340　have trouble/difficulty（in）doing sth.和take trouble to do sth.

① have trouble/difficulty（in）doing sth.表示“做某事有困难”，have no trouble/difficulty（in）doing sth.表示“做某事无困难”。这里的trouble和difficulty用作不可数名词，但也可用作可数名词，如get into difficulties，face a lot of difficulties。

Do you have any trouble in doing it？你做这件事有什么困难吗？

I have much difficulty in understanding her accent. 我很难听懂她的口音。

He had some difficulty in translating the book. 他要翻译那本书有些困难。

She has great difficulty in working out the problem. 她解决这个问题有相当大的困难。

② take trouble to do sth.表示“尽力做某事”，后跟不定式，这里的trouble可用great，much，a lot of，all the等修饰。

He took much trouble to help me with my English. 他费很多心帮助我学习英语。

She took all the trouble to bring up the two children. 她费尽心血抚养两个孩子。

③ trouble sb. to do sth.表示“麻烦某人做某事”。

May I trouble you to shut the window？麻烦你把窗户关上好吗？

Don't trouble him to come again. 不要麻烦他再来了。