iteration

/ˌɪtəˈreɪʃn/ (bre, ipa) · /ˌɪtəˈreɪʃn/ (ame, ipa) · /ˌi-tə-ˈrā-shən/ (ame, mw)

iteration — 名詞

  • iterationsingular
  • iterationsplural

1. The act of performing an action or process repeatedly, with the aim of making it

1.名詞B2
釋義

反覆；迭代

不斷重複以改進的過程

The act of performing an action or process repeatedly, with the aim of making it better each time; or one single cycle within such a repeated series.

例句

The design team went through several iterations before finalising the product.

設計團隊在產品定案前經歷了多次反覆修改。

collocation: several iterations / through iterations

Each iteration of the training program brought better results for the students.

訓練方案的每一次迭代都為學生帶來了更好的成果。

pattern: each iteration of + [noun]

同義詞
  • repetition

    neutral — just doing again, without the improvement goal that iteration implies

  • round

    less formal — one stage in a process, often used with 'of' (e.g. 'round of talks')

  • revision

    focuses on changing/correcting content rather than cycling through a full process

反義詞
  • one-off

    a single event that is not repeated

文法句型

[number] + iteration(s) + of + [noun]

through + [number] + iterations

iteration + after + iteration

用法筆記

Commonly used with 'through', 'multiple', 'several', 'first', and 'next'. Often appears in design, writing, and product-development contexts.

常見錯誤

❌We need one more repeat of the design before the deadline.
✅We need one more iteration of the design before the deadline.
💡'repeat' simply means doing it again; 'iteration' implies a planned cycle that aims to improve.

2. A single application of a mathematical or computational rule to a number or data

2.名詞C1
釋義

疊代

數學或運算中重複套用規則的步驟

A single application of a mathematical or computational rule to a number or data set; or the entire sequence of such repeated applications, where the output of one step becomes the input for the next.

例句

The algorithm reaches a stable result after about ten iterations of the calculation.

該演算法在經過約十次疊代運算後達到穩定的結果。

collocation: [number] + iterations of + [noun]

Each iteration of the loop processes one row of data from the spreadsheet.

迴圈的每一次疊代都會處理試算表中的一行資料。

pattern: each iteration of + [software construct]

同義詞
  • loop pass

    programming-specific — one cycle of a loop in code

  • recurrence

    mathematical — focuses on the recurrence relation, not the process

  • cycle

    broader — a single complete execution of a repeated process

文法句型

[number] + iterations

iteration + of + [algorithm/loop/formula]

per + iteration

用法筆記

In mathematics and computing, this sense is followed by a number ('10 iterations') or a reference to the rule or loop being applied ('iteration of the algorithm'). The adjective 'iterative' (e.g., 'iterative method') describes a process that achieves results through repeated iterations.

常見錯誤

❌The computer ran 100 repetitions of the formula.
✅The computer ran 100 iterations of the formula.
💡'repetition' is a general term; 'iteration' is the precise technical term in programming and mathematics for repeated application of a rule.

3. Each distinct release of a product that improves upon what came before, especial

3.名詞B2
釋義

版本

產品或軟體更新後的新版本

Each distinct release of a product that improves upon what came before, especially a new build of a software program.

例句

The latest iteration of the app runs much faster than the original release.

這款 App 的最新版本執行速度遠比最初版快得多。

collocation: latest iteration of + [product]

Christopher downloaded the first iteration of the software, which was missing several features.

Christopher 下載的是該軟體的第一個版本，缺少好幾項功能。

同義詞
  • version

    more general — any distinct form, not necessarily tied to an improvement cycle

  • release

    focuses on the public launch rather than the development cycle

  • edition

    often used for printed works or special releases, not typical for software

反義詞
  • original

    the very first version, before any iterations

文法句型

[adjective] + iteration + of + [product/software]

用法筆記

In software contexts, 'iteration' is often interchangeable with 'version' but suggests a development-cycle perspective — each iteration is the result of a design-build-test cycle. The term is also used in agile development for time-boxed development cycles.

常見錯誤

❌This iteration of the phone just has a different colour.
✅This version of the phone just has a different colour.
💡'iteration' implies changes or refinements; if nothing was meaningfully improved, 'version' is more appropriate.