assiduity /,aesi'dju: ati US: -'du: -; zesa'djuati, -du-/ n 1 [U] constant and careful attention to what one is doing: 專(zhuān)心致志; 勤勉不懈： He plans everything with unfailing ~. 他孜孜不倦地計(jì)劃每一件事。 2 (pl -ties) constant attentions (to). 殷勤的照料; 周到的關(guān)懷 (與 to 連用) 。