The whole word grows from one picture: something running, flowing steadily in one direction — like the water of a river that keeps moving. From that flow come the moving streams of water, air, and electricity. And the adjective is the same flow seen as time: what is "running right now", the moment that is presently flowing past — i.e. happening now.
From the word’s history
From Latin currere "to run" (via Old French corant "running, flowing"). The original English sense was literally "running, flowing". The water/air/electricity "current" keeps that flowing picture; the adjective "current" = what is running in the present moment, i.e. happening now.
來自拉丁文 currere「奔跑、流動」（經古法文 corant「奔流的」）。這個字最早在英文裡就是字面的「流動、奔流」。水流／氣流／電流保留了這個「流」的畫面；形容詞的 current 則是「此刻正跑著的」——也就是現在正在發生的。
etymonline.com/word/current
登入就可以看每一支怎麼連回核心畫面。
原始詞典資料10 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，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。
Currentname
- 1
A surname.
currentnoun/ˈkʌɹənt/
- 1
The generally unidirectional movement of a gas or fluid.
- The mantle is important to our discussion in that its viscous nature can conduct convection currents that have effects on the crust upon which we live.
- 2
The part of a fluid that moves continuously in a certain direction, especially (oceanography) ellipsis of ocean current.
- 3
businesselectrical-engineeringelectricityEllipsis of electric current.
- 4
A tendency or a course of events.
currentadj/ˈkʌɹənt/
- 1
Existing or occurring at the moment.
- current events
- current leaders
- 2
Generally accepted, used, practiced, or prevalent at the moment; having currency.
- current affairs
- current bills and coins
- 3
Electric; of or relating to electricity.
- current bill
- current shock
- 4
obsoleteRunning or moving rapidly.
- For here we met, some ten or twelve of us, / To chase a creature that was current then / In these wild woods, the hart with golden horns.
這個拼法也被記錄為下列字的變化形：
- electric current
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。