1. to stop something from happening
阻止某事發生
Regular exercise can help prevent heart disease.
規律運動有助於預防心臟病。
We must take action to prevent an accident.
我們必須採取行動以防止意外發生。
Prevent Meaning（定義、用法、例句與發音）
prevent
verb
快速理解
What does "Prevent" mean?What are 2-3 core uses of "Prevent"?
指採取行動以阻止某事發生或某人做某事。
- 1
阻止事件發生
EN: to stop something from happening
翻譯: 防止某件事情發生。
- 2
阻止某人做某事
EN: to stop someone from doing something
翻譯: 阻止某人進行某個行為。
- 3
預先採取措施避免
EN: to take action in advance to avoid a problem
翻譯: 預先採取措施以避免問題。
- 4
使不可能
EN: to make something impossible
翻譯: 使某事變得不可能。
小提醒：注意常用搭配 "prevent someone/something from doing something"，介系詞 "from" 不可省略。
發音（How to Pronounce "Prevent" in English）
How to pronounce "Prevent" in English?"Prevent" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Prevent" from YouTube Videos
What Would Elon Musk Work On If He Were 22?
Y Combinator
“Um the most pressing item: Sec uh, then um obviously anything to do with with genetics, Um, if you can actually solve um genetic diseases, um, if you can um prevent dementia, um or Alzheimer's or something like that, that um with genetic reprogramming, that would be wonderful.”
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Definitions（定義）
What are the definitions of "Prevent"?How does "Prevent" change by context?
2. to stop someone from doing something
阻止某人做某事
The security guard prevented him from entering the building.
保安阻止他進入大樓。
Nothing can prevent me from achieving my goals.
沒有什麼能阻止我達成目標。
3. to make something impossible or unlikely
使某事不可能或不太可能發生
The heavy rain prevented any outdoor activities.
大雨使得任何戶外活動都無法進行。
His injury prevented his participation in the tournament.
他的傷勢使他無法參加錦標賽。
Grammar & Patterns（句型）
What are common sentence patterns for "Prevent"?How to make natural sentences with "Prevent"?
| Pattern | Meaning | Example |
|---|---|---|
| prevent + noun | 防止、阻止某事物 | The new software helps prevent security breaches. (新軟體有助於防止安全漏洞。) |
| prevent + someone/something + from + V-ing | 阻止某人/某事物做某事 | The heavy rain prevented us from going out. (大雨阻止了我們外出。) |
| prevent + the + noun + of + something | 防止…的發生 | The treaty aims to prevent the spread of nuclear weapons. (該條約旨在防止核武擴散。) |
| be prevented | 被阻止、被防止 | The accident could have been prevented with proper maintenance. (如果有適當的維護，這起事故本可被避免。) |
| take steps/measures to prevent + noun | 採取措施防止… | The city took measures to prevent flooding. (該市採取了措施來防止洪水。) |
用法說明
How is "Prevent" different from similar structures?What usage mistakes are common with "Prevent"?
prevent + 受詞 + from doing vs. prevent + 受詞 + to do
- prevent + 受詞 + from doing 是標準且正確的結構，表示「阻止某人/某物做某事」。介系詞
from在這裡是必要的。 - prevent + 受詞 + to do 是一個常見的錯誤。動詞
prevent後面不接不定詞 (to V) 來表示被阻止的動作。 - 有時在非正式口語中，
from可能會被省略，變成 prevent + 受詞 + doing，例如 "This prevents the disease spreading." 但在正式寫作或考試中，建議保留from以確保正確性。 - 被動語態為 be prevented from doing，例如 "He was prevented from leaving."（他被阻止離開。）
對比例句： EN: The new software prevents users from accessing harmful websites. 翻譯: 新軟體能防止使用者存取有害網站。
EN:The new software prevents users to access harmful websites.
翻譯:(錯誤用法)
EN:Safety barriers are installed to prevent children from falling into the pool.
翻譯:安裝了安全護欄以防止兒童跌入泳池。
EN:Safety barriers are installed to prevent children to fall into the pool.
翻譯:(錯誤用法)
總結建議
標準且最安全的用法是 prevent someone/something from doing something，應避免使用 prevent to do 的結構。
易混淆對比
What is the difference between "Prevent" and similar words?How to choose "Prevent" vs alternatives?
prevent vs avoid
prevent 強調採取行動阻止某事發生；avoid 強調主動避開或遠離可能發生的事。
prevent vs stop
prevent 著重於『預防』，在事情開始前阻止；stop 著重於『停止』，在事情進行中使其中斷。
prevent vs hinder
prevent 是完全阻止；hinder 是部分阻礙或延遲。
口語用法
How is "Prevent" used in spoken English?What is the spoken vs formal difference for "Prevent"?
引述
在轉述他人建議或指示時，常用來緩和語氣，表示這不是說話者本人的要求。 EN: My doctor said to prevent it by getting more sleep. 翻譯: 我的醫生說要多睡覺來預防。
EN:She told me to prevent any issues by checking twice.
翻譯:她叫我檢查兩遍，以防出任何問題。
語氣強調
與「always」、「never」或「really」等副詞連用，在對話中加強建議或警告的迫切性。 EN: You should really prevent that from happening again. 翻譯: 你真的應該防止那種事再次發生。
EN:I always try to prevent misunderstandings.
翻譯:我總是盡力預防誤會。
停頓填充
在組織思緒或尋找合適字眼時，會用「to prevent... you know...」或「prevent, like,」作為暫時的填充語。 EN: We need to prevent... you know... the usual problems. 翻譯: 我們需要預防…你知道的…那些老問題。
EN:The goal is to prevent, like, a total disaster.
翻譯:目標是要預防，那個，一場徹底的災難。
正式寫作注意：在學術或正式文件中，應避免使用上述口語中的停頓填充語（如「you know」、「like」），並選擇更精確、結構完整的句子來表達。
常見短語
What common collocations use "Prevent"?What fixed phrases with "Prevent" should I remember?
prevent someone/something from doing something
prevent + object + from + verb-ing
阻止某人/某物做某事
prevent an accident
prevent + a/an + (negative event)
防止意外
prevent disease
prevent + (problem/illness)
預防疾病
prevent the spread of something
prevent + the + spread + of + noun
防止某物的擴散/蔓延
prevent damage
prevent + (negative outcome)
防止損壞/損害
prevent war
prevent + (large-scale negative event)
防止戰爭
prevent a recurrence
prevent + a/an + recurrence
防止再次發生
effectively prevent
adverb + prevent
有效地防止
常見錯誤
What are common mistakes with "Prevent"?Which "Prevent" sentences look correct but are wrong?
×We must prevent to happen the accident.
✓We must prevent the accident from happening.
「prevent」的正確句型是「prevent + 受詞 + from + V-ing」，不能直接接不定詞「to V」。
×This medicine prevents cold.
✓This medicine prevents colds.
「prevent」通常用於防止特定、具體的事件或情況發生，因此可數名詞（如 colds, accidents, problems）通常會用複數形式或加上冠詞，表示泛指一類事件。
×I prevented him to go out.
✓I prevented him from going out.
「prevent」後接人物受詞時，必須使用「prevent + 人 + from + V-ing」的結構，不能接不定詞。
×We need to prevent that the problem happens again.
✓We need to prevent the problem from happening again.
「prevent」不能接「that」子句。必須使用「prevent + 受詞 + from + V-ing」的結構。
×The lock is to prevent thieves.
✓The lock is to prevent theft.
「prevent」的受詞通常是「不希望發生的事件或結果」（如 theft, damage, loss），而不是「執行該事件的人或物」（如 thieves）。若要表達阻止某人，需用「prevent + 人 + from + V-ing」。
×She prevented the child crying.
✓She prevented the child from crying.
在「prevent + 受詞 + from + V-ing」的結構中，介系詞「from」不能省略。
詞形變化
What are the word forms of "Prevent"?What are tense/participle forms of "Prevent"?
prevents(3rd_singular)preventing(present_participle)prevented(past)prevented(past_participle)