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A doughnut is a small sweet fried cake. The shape people picture now is often a ring with a hole, but that ring became common only later; the first doughnuts were little round balls of fried dough, about as small as a nut, or like a small round cake. You can still buy the ball kind, and the holes cut from ring doughnuts are sold as doughnut holes.
A doughnutDoughnut（甜甜圈） is a small sweet fried cake是一種小小的、甜的油炸糕點。The shape people picture now is often a ring with a hole現在大家想到的形狀常常是中間有洞的圓環 but that ring became common only later但這種環形是後來才變得常見的 the first doughnuts were little round balls of fried dough最早的doughnut其實是一顆顆炸過的圓形小麵團 about as small as a nut, or like a small round cake大小差不多像一顆堅果，或像一個小圓餅。You can still buy the ball kind你現在還是買得到球狀的那種 and the holes cut from ring doughnuts are sold as doughnut holes而環形doughnut中間切下來的洞，也會被拿去賣，叫做doughnut holes。
The cake is sweet, often covered in sugar, , or jam. In shops and signs, especially in American English, you will very often see the shorter spelling donut; it is the same food, not a different thing.
The cake is sweet這種糕點是甜的 often covered in sugar, icing, or jam常常裹著糖、糖霜或果醬。In shops and signs, especially in American English在店家招牌上，尤其是美式英文裡 you will very often see the shorter spelling donut你很常會看到比較短的拼法donut it is the same food, not a different thing那是同一種食物，不是不同的東西。
The word is informal and everyday — snack talk, bakeries, breakfast. People sometimes stretch it for other ring shapes, but the home meaning is this fried cake.
The word is informal and everyday這個字很口語、很日常 — snack talk, bakeries, breakfast——點心話題、麵包店、早餐都會用到。People sometimes stretch it for other ring shapes人們有時候會把它延伸用在其他環形的東西上 but the home meaning is this fried cake但這個字真正的家是這種油炸糕點。
組成dough + nut (1809): first because they were small nut-sized balls of fried dough, or more likely from an older sense of nut meaning a small rounded cake; the ring shape became common in the twentieth century.
原始詞典資料14 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。
Doughnutname
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informalThe head office of the GCHQ in Cheltenham, UK.
- Former hackers as well as government suits roam the curved corridors of “the Doughnut”, as GCHQ’s base is known.
doughnutnoun/ˈdəʊnʌt/
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A deep-fried piece of dough or batter, usually mixed with various sweeteners and flavors, often made in a toroidal or ellipsoidal shape flattened sphere shape filled with jelly/jam, custard, or cream.
- The soldiers, drawn up in hollow square—how apt is this word hollow, when applied to men who have fasted, in view of promised doughnuts!—received the procession, which consisted of music, then the ladies, then the doughnuts.
- One American student sought my help to take the work further in his school science project, in which he studied how doughnuts differ from cookies.
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Any object in the shape of a torus.
- He put on the life jacket and began paddling around. A doughnut life raft popped up out of the ocean in front of him.
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natural-sciencesphysical-sciencesphysicsAny object in the shape of a torus.
- In about 1951, the same company sealed into their vacuum doughnuts the regenerative peelers so that X-ray beams or electron beams could be obtained with the sealed off commercial tubes used in […]
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Any object in the shape of a torus.
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Any object in the shape of a torus.
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Any object in the shape of a torus.
- The advantage of the doughnuts was that they spread the weight of the aeroplane over a much larger area of ground, causing less damage to grass, and making them less prone to bogging down in wet conditions.
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Any object in the shape of a torus.
- Place the hair doughnut/ring around your ponytail
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vulgarslangAny object in the shape of a torus.
- When I was at the Royal Academy of Dramatic Art . . . there was a lady student there — and I had designs on her doughnut
- My mother was sixteen when she lost her doughnut. Said she waited till she was legal. She was itching to do it she said.
另外 4 個記錄的用法
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vulgarslangAny object in the shape of a torus.
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A foolish or stupid person; an idiot.
- Nice going, you doughnut!
- You fucking doughnut, of course you don't microwave a salad!
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A toroidal cushion typically used by hemorrhoid patients.
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slangentertainmentlifestylemusicA whole note.
doughnutverb/ˈdəʊnʌt/
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To encircle something.
- […] even the notorious ‘doughnuting’ (gathering around the Member speaking) appears to have fallen out of fashion.
- My body flew like a rag doll as he relentlessly and with purpose kept doughnuting the car in wilder circles.
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。