adoWiktionary 原文/əˈduː/n.纷扰，忙乱，麻烦中文释义来自 ECDICT词源链中古英语Middle English约 1150–1500 年at do‘to do’↓ 继承英语Englishado词源说明From Northern Middle English at do (“to do”), infinitive of do, don (“to do”), see do. Influenced by an Old Norse practice of marking the infinitive by using the preposition at, att (compare Danish at gå (“to go”)). More at at, do.释义名词noun1Trouble; troublesome business; fuss, commotion.