1. expressing agreement, approval, or optimism
表示同意、贊成或樂觀的
She gave a positive response to the proposal.
她對這項提議給予了正面的回應。
Try to stay positive about the future.
試著對未來保持樂觀。
Positive Meaning（定義、用法、例句與發音）
positive
adjective
快速理解
What does "Positive" mean?What are 2-3 core uses of "Positive"?
「positive」主要描述肯定、積極或明確的狀態，也可指科學上的正極或陽性結果。
- 1
肯定樂觀
EN: expressing agreement, optimism, or confidence
翻譯: 表示同意、樂觀或自信的
- 2
明確無疑
EN: clear, definite, or certain
翻譯: 清楚、明確或確定的
- 3
科學數值
EN: greater than zero, or having a particular electrical charge
翻譯: 大於零的，或帶有特定電荷的（正極）
- 4
檢驗結果
EN: showing the presence of a substance or condition (e.g., medical test)
翻譯: 顯示某物質或狀況存在的（如醫學檢驗呈陽性）
小提醒：注意「positive」在科學/數學情境（正數、正電）與日常用語（積極、肯定）的語義差異，避免混淆。
發音（How to Pronounce "Positive" in English）
How to pronounce "Positive" in English?"Positive" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Positive" from YouTube Videos
Boghuma Kabisen Titanji: Ethical riddles in HIV research
TED
“Her story has a positive ending, but there are thousands of others in similar situations who are much less fortunate.”
(1 out of 88)
Definitions（定義）
What are the definitions of "Positive"?How does "Positive" change by context?
2. good, beneficial, or constructive
好的、有益的或有建設性的
Exercise has a positive effect on your health.
運動對你的健康有正面的影響。
He made a positive contribution to the team.
他為團隊做出了積極的貢獻。
3. completely certain; with no doubt
完全確定的；毫無疑問的
Are you positive you locked the door?
你確定你鎖門了嗎？
I'm positive that I saw her yesterday.
我百分之百確定昨天看到她了。
4. (in science/math) greater than zero, or showing the presence of something
（科學/數學）大於零的，或顯示某物存在的
The test result came back positive.
檢測結果呈陽性。
Five is a positive number.
五是正數。
Grammar & Patterns（句型）
What are common sentence patterns for "Positive"?How to make natural sentences with "Positive"?
| Pattern | Meaning | Example |
|---|---|---|
| be + positive | 是積極的、正面的 | She always has a positive attitude. (她總是保持積極的態度。) |
| positive + about + noun/gerund | 對…持樂觀/肯定態度 | He is very positive about the future. (他對未來非常樂觀。) |
| positive + that + clause | 確信… | I'm positive that I locked the door. (我確信我鎖了門。) |
| a positive + effect/influence/impact | 積極的影響 | Exercise has a positive effect on mental health. (運動對心理健康有積極的影響。) |
| test positive for + (disease/substance) | (檢測)對…呈陽性反應 | He tested positive for COVID-19. (他的COVID-19檢測呈陽性。) |
| stay/remain positive | 保持積極樂觀 | Despite the setbacks, we must stay positive. (儘管遇到挫折，我們必須保持積極樂觀。) |
| in a positive way/light | 以積極的方式/角度 | Try to view the situation in a positive light. (試著從積極的角度看待這個情況。) |
| positive feedback/review | 正面的回饋/評價 | The product received positive reviews from customers. (該產品獲得了顧客的正面評價。) |
用法說明
How is "Positive" different from similar structures?What usage mistakes are common with "Positive"?
positive about doing vs positive to do
- "positive about doing" 強調對某個特定行動或計劃抱持確信、樂觀的態度。
- "positive to do" 這種結構在標準英語中並不常見，聽起來不自然。
- 表達「對做某事感到樂觀」時，應使用 "positive about + V-ing" 或 "positive that + 子句"。
- 在正式或書面語中，應避免使用 "positive to + 動詞原形"。 EN: She is very positive about starting her own business. 翻譯: 她對於自己創業感到非常樂觀。
EN:He was positive that he had locked the door before leaving.
翻譯:他確信自己在離開前鎖了門。
總結建議
使用 "positive about doing" 或 "positive that..." 來表達對某事的確信或樂觀態度，避免使用 "positive to do"。
易混淆對比
What is the difference between "Positive" and similar words?How to choose "Positive" vs alternatives?
positive vs optimistic
「positive」強調事實或結果本身是好的、確定的；「optimistic」則強調個人對未來抱持的樂觀態度或信念。
positive vs constructive
「positive」泛指一切好的、積極的性質；「constructive」特指有建設性、能帶來改進或進步的意見或行動。
positive vs affirmative
「positive」可表達肯定、確信或科學上的陽性；「affirmative」較正式，主要用於表示同意或贊成，常見於正式回答或法律用語。
口語用法
How is "Positive" used in spoken English?What is the spoken vs formal difference for "Positive"?
引述
在口語中，當引述或轉述他人的正面評價時，常用 "positive" 來概括。 EN: She was very positive about the new plan. 翻譯: 她對這個新計畫的評價非常正面。
EN:The feedback we got was overwhelmingly positive.
翻譯:我們得到的回饋壓倒性地是正面的。
語氣強調
在對話中，為了強調樂觀或肯定的態度，會重讀 "positive" 或搭配副詞使用。 EN: I am absolutely positive that this will work. 翻譯: 我百分之百肯定這會成功。
EN:He's in a really positive frame of mind lately.
翻譯:他最近的心態真的非常積極。
停頓填充
在思考或組織語句時，有時會用 "positive" 作為一個過渡詞，引出接下來的正面論點。 EN: So, on a more positive note, sales have improved. 翻譯: 所以，從更積極的一面來看，銷售額已經提升了。
EN:Well, to be positive, we did learn a lot from the experience.
翻譯:嗯，往好處想，我們確實從這次經驗中學到很多。
正式寫作注意：在正式或學術寫作中，應避免將 "positive" 用作單純的語氣填充詞，並需提供具體的證據或描述來支持「正面」的論斷，而非僅依賴此形容詞。
常見短語
What common collocations use "Positive"?What fixed phrases with "Positive" should I remember?
positive attitude
adjective + noun
積極的態度
positive impact
adjective + noun
正面的影響
positive feedback
adjective + noun
正面的回饋；正回饋
test positive
verb + adjective
檢測呈陽性
positive outlook
adjective + noun
樂觀的看法
positive reinforcement
adjective + noun
正增強
positive thinking
adjective + noun
正面思考
positive result
adjective + noun
正面的結果；陽性結果
常見錯誤
What are common mistakes with "Positive"?Which "Positive" sentences look correct but are wrong?
×He has a positive for the job.
✓He has a positive attitude for the job.
"Positive" 作為形容詞，不能單獨用作名詞來表示「積極的態度」或「正面的事情」。需要加上適當的名詞（如 attitude, result, feedback）或使用名詞形式 "positivity"。
×I am positive that it will rain tomorrow. (intending to mean 'I am optimistic')
✓I am optimistic that it will rain tomorrow.
"Be positive that..." 表示「確信、肯定」，帶有確定的語氣，而非單純的樂觀。表達對未來事件的樂觀預期應使用 "optimistic"。混淆兩者會導致語意錯誤。
×Try to be positive for the future.
✓Try to be positive about the future.
表達「對...持積極態度」時，常用介系詞 "about"，而非 "for"。"For" 通常用於表示目的或原因，如 "positive for bacteria"（細菌檢測陽性）。
×He thinks very positive about the changes.
✓He thinks very positively about the changes.
修飾動詞 "thinks" 應使用副詞 "positively"，而非形容詞 "positive"。形容詞用於修飾名詞或放在 be 動詞後。
×We need to take positive actions to solve this problem.
✓We need to take proactive actions to solve this problem.
"Positive" 強調態度或結果是「正面的、有益的」，而 "proactive" 強調「主動的、先發制人的」。在表示「採取主動行動」時，常用 "proactive" 更準確。
詞形變化
What are the word forms of "Positive"?What are tense/participle forms of "Positive"?