1. used to emphasize that something is true or will happen
用於強調某事是真實的或將會發生
He will certainly be there on time.
他肯定會準時到那裡。
It certainly looks like rain.
看起來肯定要下雨了。
Certainly Meaning（定義、用法、例句與發音）
certainly
adverb
快速理解
What does "Certainly" mean?What are 2-3 core uses of "Certainly"?
用於表達對事實或可能性的強烈肯定。
- 1
無疑地，肯定地
EN: He will certainly be there on time.
翻譯: 他肯定會準時到那裡。
- 2
當然（用於強調同意或應允）
EN: "May I borrow your pen?" "Certainly!"
翻譯: 「我可以借你的筆嗎？」「當然可以！」
- 3
必定，必然（表示某事是不可避免的結果）
EN: If you don't study, you will certainly fail.
翻譯: 如果你不讀書，你必定會失敗。
- 4
確實，無可否認地（用於加強語氣）
EN: It was certainly the best movie I've seen this year.
翻譯: 這確實是我今年看過最棒的電影。
小提醒：在正式書寫中，避免將 "certainly" 與 "sure" 或 "of course" 完全等同使用，後兩者在某些語境下可能顯得不夠正式。
發音（How to Pronounce "Certainly" in English）
How to pronounce "Certainly" in English?"Certainly" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Certainly" from YouTube Videos
Steve Jobs' 2005 Stanford Commencement Address
Stanford
“When I was 17,, I read a quote that went something like: "If you live each day as if it was your last, someday you'll most certainly be right".”
(1 out of 133)
Definitions（定義）
What are the definitions of "Certainly"?How does "Certainly" change by context?
2. used to agree or give permission in a strong or polite way
用於強烈或禮貌地表示同意或給予許可
"May I borrow your pen?" "Certainly!"
「我可以借你的筆嗎？」「當然可以！」
You can certainly use my computer if you need to.
如果你需要的話，當然可以用我的電腦。
3. without any doubt; definitely
毫無疑問地；肯定地
She is certainly the best candidate for the job.
她無疑是這份工作的最佳人選。
The results will certainly surprise everyone.
結果肯定會讓每個人都感到驚訝。
4. used to admit that something is true before adding contrasting information
用於承認某事為真，然後補充對比資訊
It's certainly a beautiful car, but it's far too expensive for me.
這輛車確實很漂亮，但對我來說太貴了。
He certainly works hard, yet his results are not impressive.
他工作確實努力，但他的成果並不突出。
Grammar & Patterns（句型）
What are common sentence patterns for "Certainly"?How to make natural sentences with "Certainly"?
| Pattern | Meaning | Example |
|---|---|---|
| certainly + verb | 肯定地（做某事） | He will certainly arrive on time. (他肯定會準時到達。) |
| certainly + not + verb | 肯定不（做某事） | I will certainly not agree to those terms. (我肯定不會同意那些條款。) |
| verb + certainly | （某事）肯定會發生 | The situation will improve certainly. (情況肯定會改善。) |
| modal verb + certainly + verb | 一定會（做某事） | We can certainly finish the project by Friday. (我們一定能在週五前完成這個專案。) |
| be + certainly + adjective | 肯定是（某種狀態） | She is certainly capable of leading the team. (她肯定有能力領導這個團隊。) |
| certainly, + sentence | 當然，（用於句首加強語氣） | Certainly, we need to consider all the options. (當然，我們需要考慮所有的選項。) |
用法說明
How is "Certainly" different from similar structures?What usage mistakes are common with "Certainly"?
certainly 的位置與搭配
- certainly 通常放在主要動詞之前、be 動詞或助動詞之後。
- 在否定句中，certainly 通常放在助動詞與否定詞
not之間，用來加強否定語氣。 - 在簡答句中，certainly 可以單獨使用，表示強烈的肯定。
- 注意 certainly 後面不直接接
to do或doing，它修飾的是整個動詞片語。
對比例句： EN: She will certainly agree with your proposal. 翻譯: 她肯定會同意你的提議。
EN:She certainly will not agree with your proposal.
翻譯:她肯定不會同意你的提議。
EN:Are you coming to the party? — Certainly!
翻譯:你會來派對嗎？ — 當然會！
EN:I certainly plan to come to the party.
翻譯:我當然計劃要來參加派對。
總結建議
一般來說，將 certainly 置於句中（動詞前，助動詞/be動詞後）或句首用於簡答，是較自然且正確的用法。
易混淆對比
What is the difference between "Certainly" and similar words?How to choose "Certainly" vs alternatives?
certainly vs surely
「certainly」強調基於事實或證據的確定性，語氣較客觀；「surely」則常帶有主觀期待或推測，有時用於反問句。
certainly vs definitely
「certainly」與「definitely」常可互換，但「definitely」語氣更強烈、絕對，且更口語化。
certainly vs of course
「certainly」用於強調事實上的確定性；「of course」則強調某事是理所當然、符合預期或眾所周知的。
口語用法
How is "Certainly" used in spoken English?What is the spoken vs formal difference for "Certainly"?
引述
用於引述或確認他人說過的話，表示「確實如此」或「沒錯」。 EN: A: "The meeting is at 3 PM." B: "Certainly, I'll be there." 翻譯: A: "會議在下午三點。" B: "確實，我會準時到。"
EN:A: "You'll need to sign this form." B: "Certainly, no problem."
翻譯:A: "您需要簽署這份表格。" B: "當然，沒問題。"
語氣強調
用於加強肯定語氣，表示毫無疑問或堅定的承諾。 EN: I will certainly let you know as soon as I hear any news. 翻譯: 我一有消息，肯定會馬上讓你知道。
EN:We certainly appreciate all the hard work you've done.
翻譯:我們確實非常感謝你所付出的所有努力。
停頓填充
在對話中作為短暫的停頓或思考用語，類似「嗯…」、「這個嘛…」，但帶有更肯定的預設立場。 EN: Would you like another cup of coffee? — Certainly, that would be lovely. 翻譯: 你想再來一杯咖啡嗎？ — 嗯…當然，那太好了。
EN:Can you finish the report by Friday? — Certainly, I'll make it a priority.
翻譯:你能在星期五前完成報告嗎？ — 這個嘛…當然，我會把它列為優先事項。
正式書寫注意：在正式或學術寫作中，應避免將 "certainly" 用作停頓填充詞。建議使用更直接、簡潔的肯定詞，如 "undoubtedly", "definitely"，或直接陳述事實，以保持文章的嚴謹性。
常見短語
What common collocations use "Certainly"?What fixed phrases with "Certainly" should I remember?
certainly not
certainly not
絕對不，當然不
most certainly
most certainly
極其肯定地，毫無疑問地
almost certainly
almost certainly
幾乎肯定，十有八九
can certainly
modal verb + certainly
當然可以，肯定能夠
certainly seem
certainly + verb
看起來確實，似乎肯定
will certainly
will certainly
肯定會，必然會
yes, certainly
yes, certainly
是的，當然（用於肯定答覆）
常見錯誤
What are common mistakes with "Certainly"?Which "Certainly" sentences look correct but are wrong?
×He is a certainly person.
✓He is a certain person.
"certainly" 是副詞，用來修飾動詞、形容詞或其他副詞，表示「肯定地」。"certain" 是形容詞，用來修飾名詞，表示「某個」或「確定的」。這裡要修飾名詞 "person"，應該用形容詞 "certain"。
×I certainly will go to the party.
✓I will certainly go to the party.
當句子中有助動詞（如 will, can, should）時，"certainly" 通常放在助動詞之後、主要動詞之前。這是副詞在助動詞結構中的常見位置。
×A: Can you pass me the salt? B: Certainly! (in very casual setting)
✓A: Can you pass me the salt? B: Sure! / Of course!
"Certainly" 在回應請求時語氣非常正式和禮貌。在朋友或家人間的日常對話中，用 "Sure" 或 "Of course" 會更自然。"Certainly" 在這種情境下聽起來可能過於拘謹。
×I certainly don't not like it.
✓I certainly don't like it.
英語中通常避免雙重否定（double negative），因為 "don't not" 在一起會變成肯定意思，造成混淆。要表達強烈的否定，用 "certainly don't" 或 "definitely don't" 即可。
×Certainly, he is coming to the meeting.
✓He is certainly coming to the meeting.
將 "certainly" 放在句首雖然文法正確，但語氣非常強烈且正式，通常用於強調或辯論中。在一般陳述事實時，將 "certainly" 放在動詞前（或助動詞後）更為自然和常見。
×Surely, he is the best candidate for the job. (when based on strong evidence)
✓He is certainly the best candidate for the job.
"Surely" 常帶有「推測」或「希望對方同意」的意味，有時表示說話者對某事感到驚訝或難以置信。"Certainly" 則基於已知事實或證據，表示更強烈的確定性。當有明確證據支持時，用 "certainly" 更準確。
詞形變化
What are the word forms of "Certainly"?What are tense/participle forms of "Certainly"?