- 1
Impulsion is a strong push — from outside or from inside — that makes something happen or exist. It can be a desire that shoves you into action, or a force that sets a thing moving. The everyday word for the inner kind is impulse. Impulsion is rarer and more for books. An impulse is often a short, sudden wish; impulsion can feel a little broader, more like a driving force that keeps a thing going. It names the push itself, not the person. Most will almost never need this noun in speech. If you mean “I did it without thinking,” impulse and impulsive are the pair you want. Though actually, some careful writers still prefer impulsion when they mean a lasting drive, not a one-second .
推動力、驅力（較書面；日常「衝動」多半是 impulse）
原始詞典資料2 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。
impulsionnoun
- 1
The act of impelling or driving onward, or the state of being impelled; the sudden or momentary agency of a body in motion on another body; also, the impelling force, or impulse.
- I wrought like a fiend, for I expected every moment to be swamped; and since I found I could not push the coracle directly off, I now shoved straight astern. At length I was clear of my dangerous neighbour, and just as I gave the last impulsion, my hands came across a light cord that was trailing overboard across the stern bulwarks.
- 2
Influence acting unexpectedly or temporarily on the mind; sudden motive or influence; impulse.
- Farther, Chrisostome upon this place saith, that Paule when he thus writeth, doth in no wise denie the nature of the flesh, but exalteth it to a more higher dignitie, namelie, that it should rather obaie the impulsion of the spirite, than lust.
- Once they sit to talk, the Pilgrims lose the impulsion that has brought them so far, their confidence in their own crude strength.
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。