核心畫面
Picture a machine or system that is switched on, working right, and ready to go the moment you need it — nothing broken, nothing still waiting to be fixed.
From the word’s history
From Latin operari 'to work, labor', from opus 'a work'; operational keeps that root sense — something that is actually working and doing its job.
字根來自拉丁文 operari（工作、勞動），再往前是 opus（工作、成品）。operational 保留了這個「有在做工、有在運轉」的味道——會動、在幹活。
Latin operari 'to work' < opus 'work' (etymonline 'operational'/'operate'; confirmed via web search)
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
operationaladj/ˌɒp.əˈɹeɪ.ʃə.nəl/
- 1
Of or relating to operations, especially military operations.
- Private-equity nabobs bristle at being dubbed mere financiers.[…]Much of their pleading is public-relations bluster. Clever financial ploys are what have made billionaires of the industry’s veterans. “Operational improvement” in a portfolio company has often meant little more than promising colossal bonuses to sitting chief executives if they meet ambitious growth targets. That model is still prevalent today.
- 2
Functioning and ready for use.
- Princess Leia, before your execution, you will join me at a ceremony that will make this battle station operational. No star system will dare oppose the Emperor now.
- Despite somewhat faded paintwork, 87017 Iron Duke is clearly very much operational, as confirmed here on September 4.
- 3
Effective or operative.
- 4
Determined by means of practical measures.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。