1. to act as an expert or give expert advice on something
以專家身份行事或就某事提供專家建議
She was hired to expert on the authenticity of the ancient manuscript.
她被聘請來鑑定這份古代手稿的真偽。
He experts in cybersecurity for several major corporations.
他為幾家大型公司擔任網路安全方面的專家。
Expert Meaning（定義、用法、例句與發音）
expert
verb
快速理解
What does "Expert" mean?What are 2-3 core uses of "Expert"?
「expert」作為動詞較為罕見，意指以專家身份提供意見或指導。
- 1
提供專家意見
EN: to give expert advice or opinion on something
翻譯: 就某事提供專家意見或建議
- 2
擔任專家
EN: to act as an expert or specialist in a particular field
翻譯: 在特定領域以專家或專家的身份行事
- 3
指導或分析
EN: to guide or analyze something with specialized knowledge
翻譯: 運用專業知識來指導或分析某事
小提醒：注意：「expert」作動詞使用非常少見，在大多數情況下，其名詞（專家）和形容詞（熟練的）形式更為常用。使用時需確保上下文能清楚表達「以專家身份行動」的含義。
發音（How to Pronounce "Expert" in English）
How to pronounce "Expert" in English?"Expert" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Expert" from YouTube Videos
Ellen 't Hoen: Pool medical patents, save lives
TED
“Nelson is a member of the expert advisory group of the Medicines Patent Pool, and he told me not so long ago: "Ellen, we rely in Kenya and in many other countries on the Medicines Patent Pool to make sure that new medicines also become available to us, that new medicines without delay become available to us".”
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Definitions（定義）
What are the definitions of "Expert"?How does "Expert" change by context?
2. to give a professional opinion or judgment, especially in a legal or formal context
提供專業意見或判斷，尤指在法律或正式場合中
The engineer was called to court to expert on the cause of the structural failure.
這位工程師被傳喚到法庭，就結構失效的原因提供專家意見。
A panel of scientists will expert on the environmental impact of the project.
一個科學家小組將就該專案的環境影響提供專業判斷。
3. to analyze or examine something with specialized knowledge
運用專業知識分析或檢驗某物
The art historian expertly expertised the painting, confirming it was a genuine Rembrandt.
藝術史學家運用專業知識鑑定了這幅畫，確認它是林布蘭的真跡。
They brought in a technician to expert the malfunctioning equipment.
他們請來一位技術員檢驗故障的設備。
Grammar & Patterns（句型）
What are common sentence patterns for "Expert"?How to make natural sentences with "Expert"?
| Pattern | Meaning | Example |
|---|---|---|
| expert + in/on + noun | 在…方面是專家；精通… | She is an expert in classical music. (她是古典音樂方面的專家。) |
| expert + at + V-ing/noun | 擅長於… | He is an expert at solving complex problems. (他擅長解決複雜的問題。) |
| be + expert + at + noun | 對…很在行 | They are expert at negotiation. (他們對談判很在行。) |
| expert + advice/opinion/help | 專家的建議/意見/幫助 | We need to seek expert advice on this matter. (我們需要就此尋求專家建議。) |
| expert + witness/testimony | 專家證人/證詞 | The defense called an expert witness to the stand. (辯方傳喚了一位專家證人出庭作證。) |
用法說明
How is "Expert" different from similar structures?What usage mistakes are common with "Expert"?
expert in doing vs. expert to do
- expert in doing 是最常見且正確的用法，表示「在（某個領域或活動）方面是專家」，強調專業領域或技能。
- expert to do 在標準英語中是錯誤的，不應使用。
- 動詞 expert 本身極其罕見，在現代英語中幾乎不用作動詞。其名詞和形容詞形式 expert 才是標準用法。
- 若要表達「指派專家去做某事」，應使用其他結構，如 send an expert to do 或 assign an expert to do。 EN: She is an expert in managing complex projects. 翻譯: 她是管理複雜專案的專家。
EN:We need to consult an expert in repairing this equipment.
翻譯:我們需要諮詢修理這台設備的專家。
總結建議
請始終使用 expert in doing 來表達專業技能，並避免使用 expert to do 或將 expert 用作動詞。
易混淆對比
What is the difference between "Expert" and similar words?How to choose "Expert" vs alternatives?
expert vs specialize
「expert」強調在特定領域擁有高水準的專業知識或技能，通常作為名詞或形容詞使用；「specialize」則強調專注於某個特定領域的活動或研究，是一個動詞。
expert vs master
「expert」強調在特定領域擁有公認的、廣泛的專業知識；「master」作為動詞時，強調完全掌握或精通某項技能或知識，達到控制自如的程度。
expert vs consult
「expert」作為動詞時，核心是「以專家身份參與」；「consult」則是「徵詢意見、參考或商量」，不必然涉及專家的身份。
口語用法
How is "Expert" used in spoken English?What is the spoken vs formal difference for "Expert"?
引述
在口語中，常用來引述或轉述他人的意見或建議，表示「某人建議/認為...」。 EN: My friend experted that I should apply for the job. 翻譯: 我朋友建議我應該去申請那份工作。
EN:She experted we take the earlier train to avoid the crowd.
翻譯:她建議我們搭早一點的火車以避開人潮。
語氣強調
用於強調建議的權威性或重要性，常與副詞如 "strongly", "highly" 連用。 EN: I would strongly expert you to reconsider their offer. 翻譯: 我強烈建議你重新考慮他們的提議。
EN:The doctor highly experted getting more rest.
翻譯:醫生強烈建議要多休息。
停頓填充
在思考或組織語句時，作為填充詞使用，類似於 "I would say..." 或 "My advice is..." 的功能。 EN: Well, if you ask me, I expert... maybe wait a few more days. 翻譯: 嗯，如果你問我的話，我建議...或許再等幾天。
EN:So, for this situation, what I expert is... to talk to them directly.
翻譯:所以，對於這種情況，我的建議是...直接跟他們談談。
正式寫作注意：在正式書面語（如報告、論文、商業信件）中，應避免將 "expert" 用作動詞。建議改用更正式的動詞，如 "advise", "recommend", "suggest"，或使用名詞形式 "offer an expert opinion"、"provide expertise"。
常見短語
What common collocations use "Expert"?What fixed phrases with "Expert" should I remember?
expert in
expert in [noun/gerund]
在...領域的專家；擅長於...
expert on
expert on [noun]
對...有專門研究；是...方面的專家
widely expert
widely expert
被公認為專家；廣受認可的專家
expert at
expert at [noun/gerund]
擅長於（某項技能或活動）
expert witness
expert witness
擔任專家證人
expert advice
expert advice
提供專家建議
expert opinion
expert opinion
提出專家意見
常見錯誤
What are common mistakes with "Expert"?Which "Expert" sentences look correct but are wrong?
×He is experting in computer programming.
✓He is an expert in computer programming.
The word 'expert' is primarily a noun or adjective, not a verb. There is no verb form 'to expert'. Use 'is an expert' (noun) or 'is expert' (adjective).
×I need to expert myself in this field.
✓I need to become an expert in this field. / I need to gain expertise in this field.
You cannot use 'expert' as a reflexive verb. Use phrases like 'become an expert', 'gain expertise', or 'specialize in'.
×The company will expert the new software.
✓The company will have an expert review the new software.
'Expert' is not a verb meaning 'to review' or 'to analyze'. You must use it as a noun in a phrase like 'have an expert (do something)'.
×She experts at playing the piano.
✓She is an expert at playing the piano.
Do not conjugate 'expert' as a present-tense verb. Use the correct noun or adjective form with the appropriate verb (e.g., 'is', 'becomes', 'considers').
×I want to expert this skill.
✓I want to master this skill. / I want to become proficient in this skill.
'Expert' cannot be used as a transitive verb meaning 'to master'. Use verbs like 'master', 'learn', or 'become proficient in'.
詞形變化
What are the word forms of "Expert"?What are tense/participle forms of "Expert"?
experts(3rd_singular)experting(present_participle)experted(past)experted(past_participle)