困難用英文怎么說difficulty名詞，困難difficult形容詞，困難的difficult是形容詞difficulty是名詞2，困難用英語怎么寫n.difficultyadj.difficult困難的.............................................................Difficult名詞的話用difficulty。形容詞就是difficult。有difficult,difficulty,hard.這些比較常用3，困難的英語怎么說hard,d...