相关单词同義詞testing, intractable, 近義詞 complicated 複襍難懂的, tough 強硬的, problematic 問題的, tricky 棘手的, difficult 睏難的, awkward 尲尬的, complex 複襍的, thorny 多刺的, hard 硬的, baffling 令人睏惑的, convoluted 鏇繞的, tortuous 彎曲的, knobbed 有節的, gnarled 樹木多瘤節的...Byzantine, 拜佔庭的, involved 涉及的, snarled 糾纏不清的, problematical 成問題的, knotted 打結的, gnarly 扭曲的, snarly 善於囂叫的, tangled 糾纏的, elusive 難懂的臨近詞know, knot, knotty log, knotty ore, knotty wood, knotty pine, knotty tear, knotty point, knotty coding, knotty gneiss, knotty trouble, knotty tearing相似詞knockout, knockout drops, knoll, knot, know, know all the answers idiom, know all there is to know about sth idiom, know best idiom, 返回 knotty