相關(guān)單詞近義詞 insoluble [化]不能溶解的..., unfathomable 深得無(wú)法到達(dá)底部的..., inexplicable 無(wú)法說(shuō)明的, insuperable （睏難）難以尅服的..., incomprehensible 不能理解的, unsolvable 不能解決的臨近詞una, Unasa相似詞unambitious, unanimity, unanimous, unannounced, unanswered, unanticipated, unapologetic, unappealing, 返回 unanswerable