指未經證實而接受為真的事物，或指承擔責任、角色的行為。
假設、假定
EN: something that you accept as true without question or proof
翻譯: 未經證實或提問就接受為真的事物。
承擔、擔任
EN: the act of taking on a responsibility, duty, or role
翻譯: 承擔責任、職務或角色的行為。
自以為是、傲慢
EN: arrogance or presumption
翻譯: 帶有傲慢或自以為是的態度。
取得、獲得
EN: the act of taking control or possession of something
翻譯: 取得控制權或所有權的行為。
小提醒：注意 'assumption' 和 'presumption' 的細微差別：'assumption' 通常基於較少證據或純粹猜想；'presumption' 則基於較合理的可能性或既有事實推斷。
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Assumption" from YouTube Videos
Don Levy: A cinematic journey through visual effects
TED
“Visual effects are based on the principles of all illusions: assumption- things are as we know them.”
1. something that is accepted as true or as certain to happen, without proof
假設；假定；設想
The whole argument is based on a false assumption.
整個論點都建立在一個錯誤的假設上。
We are working on the assumption that the meeting will go ahead as planned.
我們正依據會議將按計劃進行的設想來工作。
2. the act of taking on power, responsibility, or a role
承擔；擔任；就任
His assumption of the presidency marked a new era for the company.
他就任總裁標誌著公司進入了一個新時代。
The assumption of such heavy debts was a risky move.
承擔如此沉重的債務是一個冒險之舉。
3. a display of arrogance or presumptuousness
傲慢；自以為是
I was annoyed by his assumption that he could use my car without asking.
他自以為可以不問一聲就用我的車，這讓我很惱火。
Her calm assumption of superiority irritated her colleagues.
她那種自以為高人一等的淡定態度激怒了她的同事。
4. the action of taking possession of something
取得；佔有
The assumption of the territory by the invading army was swift.
入侵軍隊對該領土的佔領非常迅速。
| Pattern | Meaning | Example |
|---|---|---|
| assumption + about + noun | 關於…的假設 | His assumption about the market was completely wrong. (他對市場的假設完全錯誤。) |
| assumption + that + clause | …的假設 | We are working on the assumption that the funding will be approved. (我們的工作是基於資金會獲得批准的假設。) |
| make an assumption | 做出假設 | It's dangerous to make an assumption without all the facts. (在沒有掌握所有事實的情況下做出假設是危險的。) |
| under the assumption + that + clause | 在…的假設下 | She acted under the assumption that everyone had been informed. (她在假設所有人都已獲悉的情況下採取了行動。) |
| challenge/question an assumption | 質疑假設 | The new data challenges our basic assumptions about the project. (新數據挑戰了我們對這個專案的基本假設。) |
| base something on an assumption | 將某事基於假設 | Their strategy was based on a flawed assumption. (他們的策略是基於一個有缺陷的假設。) |
| a safe/reasonable assumption | 一個安全/合理的假設 | It's a safe assumption that prices will continue to rise. (價格將持續上漲是一個安全的假設。) |
| a false/incorrect assumption | 一個錯誤/不正確的假設 | The whole argument collapsed because it started from a false assumption. (整個論點崩潰了，因為它始於一個錯誤的假設。) |
EN:The plan is based on the assumption of continued low interest rates.
翻譯:這項計畫是基於利率持續低檔的假設。
EN:Her argument relies on the assumption that all participants are acting in good faith.
翻譯:她的論點依賴於所有參與者都是出於善意的假設。
EN:His promotion led to the assumption of greater responsibilities.
翻譯:他的晉升導致了對其承擔更大責任的假設。
在表達假設的具體內容時用「assumption that + 子句」，而假設的對象是名詞性事物時則用「assumption of + 名詞」。
assumption vs presumption
「assumption」是未經證實的一般性假設；「presumption」則是基於某些證據或可能性較高的推斷，有時帶有自信或冒昧的意味。
assumption vs hypothesis
「assumption」是論述或行動的隱含前提；「hypothesis」則是為進行測試或研究而提出的具體、可檢驗的科學假說。
assumption vs supposition
「assumption」常指被接受為行動或推理基礎的假設；「supposition」則更側重於暫時性的猜測或臆測，證據基礎可能更薄弱。
用於引述或轉述他人的想法或推測。 EN: So, based on your assumption that the market will grow, we should invest now. 翻譯: 所以，基於你認為市場會成長的這個假設，我們現在應該投資。
EN:Her whole argument rests on the assumption that everyone has equal access.
翻譯:她的整個論點都建立在一個假設上，就是每個人都有平等的機會。
在對話中強調某個前提或未經證實的想法，常與動詞如 "make" 或 "operate under" 連用。 EN: Don't just make the assumption that I'll agree—ask me first. 翻譯: 別直接就假定我會同意，先問問我。
EN:We've been operating under the assumption that the deadline is flexible.
翻譯:我們一直以來的假設是截止日期是有彈性的。
在思考或組織語言時，用來填充停頓，引出接下來的推論或問題。 EN: Okay, so if we go with that assumption... then the next step would be to contact the supplier. 翻譯: 好，如果我們接受那個假設的話…那下一步就是聯繫供應商。
EN:My assumption is, you probably haven't had time to look at the report yet?
翻譯:我的假設是，你大概還沒時間看報告吧？
正式寫作注意：在學術或正式商業寫作中，應避免將 "assumption" 用於口語填充或過於隨意的引述。建議使用更精確的術語，如 "premise"、"hypothesis" 或 "postulate"，並明確指出其為論證的基礎，而非隨意猜想。
make an assumption
verb + assumption
做出假設
under the assumption that
preposition + assumption
基於...的假設
challenge an assumption
verb + assumption
質疑假設
false assumption
adjective + assumption
錯誤的假設
basic assumption
adjective + assumption
基本假設
assumption of power
assumption + of + noun
掌權；取得權力
on the assumption
preposition + assumption
在...假設下
×I made an assumption that he is coming.
✓I assumed that he is coming.
當動詞 'assume' 已經表達「假設」的動作時，不需要再使用名詞 'assumption'。使用動詞 'assume' 更為直接和自然。
×My assumption is he will agree.
✓My assumption is that he will agree.
名詞 'assumption' 後面接一個完整的子句（說明假設的內容）時，通常需要連接詞 'that' 來引導。省略 'that' 在口語中可能可以接受，但在正式寫作中建議保留。
×We work on the assumption of his honesty.
✓We work on the assumption that he is honest.
當要具體說明假設的『內容』（一個事實或狀態）時，使用 'assumption that + 子句' 比 'assumption of + 名詞' 更為常見和自然。'assumption of' 後面通常接抽象名詞（如 role, responsibility, power），表示「承擔」。
×Don't do assumptions.
✓Don't make assumptions.
與 'assumption' 搭配的動詞是 'make'，而不是 'do'。這是固定的動賓搭配。
×Your assumption is correctly.
✓Your assumption is correct.
在 'is' 這個連綴動詞後面，應該使用形容詞 'correct' 來描述主詞 'assumption' 的狀態，而不是使用副詞 'correctly'。副詞用來修飾動詞、形容詞或其他副詞。
×I have a assumption.
✓I have an assumption.
由於 'assumption' 的發音以母音開頭 (/əˈsʌmp.ʃən/)，前面的不定冠詞應該使用 'an'，而不是 'a'。