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If something impels you to do something, it pushes you from the inside: a feeling, a duty, or a need so strong that you feel you must act. It is more formal than make or push. Fear may impel someone to run; curiosity may impel someone to ask. Though actually, students often mix this with compel. Compel is closer to “you have no choice; something outside forces you.” Impel is the inner drive. People do stretch them, and in loose talk they overlap, but that difference is still useful. The history is Latin impellō, “to drive or push into.”
驅使、促使（偏書面；強調內心有股力量推你去做）
組成From Middle English impellen, borrowed from Latin impellō (in- “into” + pellere “to drive, to push”).
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。
impelverb/ɪmˈpɛl/
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To urge a person; to press on; to incite to action or motion via intrinsic motivation.
- She was a fat, round little woman, richly apparelled in velvet and lace, […]; and the way she laughed, cackling like a hen, the way she talked to the waiters and the maid,[…]—all these unexpected phenomena impelled one to hysterical mirth, and made one class her with such immortally ludicrous types as Ally Sloper, the Widow Twankey, or Miss Moucher.
- I feel impelled to reply to Roger Henry's letter about my article on being denied an apartment. I truly resent any insinuation that I "slunk back into that rotting old closet."
- 2
To drive forward; to propel an object, to provide an impetus for motion or action.
- The wind impelled the kayaks toward the shore.
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。