事情本身斷得太快
這是核心畫面最直接的用法：把「缺了過渡」套在事件、動作、變化上。
suddenly · r · C2
In a sudden way, with little or no warning — used when something stops, changes, or ends.
突然地
核心畫面
A line that was moving smoothly and then just stops — no slowing down, no sign that the end was coming. Think of a road that suddenly ends at a cliff edge: one step you are walking, the next step there is nothing. `abruptly` is the adverb for that missing middle part — the ramp, the warning, the gentle slope that normally connects one state to the next simply is not there.
一條原本順順走著的線，忽然斷掉——中間那段「緩衝」不見了。像一條路走著走著直接到懸崖邊：前一步還在走，下一步就沒有了…更多收起
一條原本順順走著的線，忽然斷掉——中間那段「緩衝」不見了。像一條路走著走著直接到懸崖邊：前一步還在走，下一步就沒有了。abrupt / abruptly 講的正是那個「本來應該有、卻缺席」的過渡段：沒有減速、沒有預告、沒有把你從甲狀態帶到乙狀態的斜坡。所以只要一件事情「該有的鋪陳被砍掉」，這個字就派得上用場。From the word’s history
From Latin abruptus, the past participle of abrumpere "to break off", built from ab- "away" + rumpere "to break" (the same rumpere behind rupture and interrupt). The literal picture is something snapped off rather than cut smoothly — which is exactly the missing-transition image the modern word carries.
來自拉丁文 abruptus，是 abrumpere（折斷、扯斷）的過去分詞，由 ab-（離開）+ rumpere（破、斷；rupture、interrupt 同源）組成。字面就是「被折斷的」——不是慢慢鋸開，而是啪一聲斷掉。這個「折斷」的畫面剛好就是今天 abruptly 的缺口感：中間那截不是慢慢收尾，是直接沒了。
Wiktionary etymology tree supplied with this entry (Latin abrumpō → abruptus → English abrupt + Middle English -ly)
Two branches
說話方式斷得太快
同一個缺口畫面，換到人與人講話的場合：被砍掉的過渡段變成寒暄、鋪陳、緩衝語氣。
curtly, bluntly · r · C2
In a quick, direct way of speaking that can seem rude or unfriendly, because you do not stop for warm talk.
唐突地
原始詞典資料1 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。
abruptlyadv/əˈbɹʌp.li/
- 1
In an abrupt manner; without giving notice, or without the usual forms; suddenly; precipitously.
- The professor stopped her lecture abruptly when she noticed someone fall off their seat.
- After weeks of speculation and intracoalitional debate, the text of the compromise was released on Sept. 21. By Sept. 27, the coalition had fallen apart, with Manchin somewhat abruptly pulling what had become known as the side deal from a must-pass budget resolution.
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。