相關(guān)單詞近義詞 fussy, grim, hard, obscure, painful, steep, stiff, ticklish, tough, trying反義詞easy, straightforward臨近詞difficulty, differentiate, difficult of, Difficultiea, difficultiesl, difficult job, difficultness, difficult man, Difficult ore, difficult task, difficult work, difficult test 返回 difficultly