劍橋詞典formal the process of doing something again and again, usually to improve it, or one of the times you do it 反複（通常爲了作出改善而重複做某事） the repetition and iteration that goes on in designing something 在設計某物時的重複與反複脩改 The software is on its fifth iteration. 這個軟件已經是第五版。 mathematics, computing specialized an amount that you get when you use a mathematical rule several times 疊代，曡代（數(shù)學裡若乾次使用一個數(shù)學法則得出的量） 返回 iteration