difficult是形容词
【中文意思】adj.困难的,费力的;不友好的,难对付的
【发音】英/ˈdɪfɪkəlt/,美/ˈdɪfɪkəlt/
【例句】
(1)The exam was quite difficult. 这场考试相当难。
(2)He's a difficult man to please. 他是个难以取悦的人。
(3)It's difficult to tell them apart. 很难把他们区分开来。
(4)It was rather a difficult question. 这真是个难题。