難于,不易 be difficult of: 難于, 不易be difficult to: 很難去……difficult: adj. 1.困難的,(工作等)艱難的。 2.執拗的,頑固的。 a difficult disposition 執拗的性情。 difficult of access 難接近。 difficult to answer 難答。 it’s not difficult: 不難that’s difficult: 那很困難下載手機詞典可隨時隨地查詞查翻譯