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TOEFL IELTS BNC: 1155 COCA: 1949
essential noun
⇨ basics (the essentials of English grammar) ⇨ need (the bare essentials)essential adj.
⇨ essential (Experience is essential for this job.) ⇨ fundamental (the essential character of the town)essential

adjective

  ➡ See also the entries for important and necessary 另見important條和necessary條essential ♦︎ vital ♦︎ crucial ♦︎ critical ♦︎ decisive ♦︎ indispensable ♦︎ imperative ♦︎ pivotal ♦︎ of the essenceThese words all describe sb/sth that is extremely important and completely necessary because a particular situation or activity depends on them. 這些詞均表示極其重要的、完全必要的。PATTERNS AND COLLOCATIONS 句型和搭配◆essential / vital / crucial / critical / decisive / indispensable / imperative / of the essence for sth◆essential / vital / crucial / critical / indispensable / pivotal to sth◆to be essential / vital / crucial / critical / imperative that...◆to be essential / vital / crucial / critical / imperative to do sth◆an essential / a vital / a crucial / a critical / a decisive / an indispensable / a pivotal part / factor◆an essential / a vital / a crucial / a critical / an indispensable ingredient / tool◆an essential / a vital / a crucial / a critical component◆essential / vital / crucial services◆the crucial / critical / decisive / pivotal moment◆to play an essential / a vital / a crucial / a critical / a decisive / a pivotal part / role in sth◆of vital / crucial / critical / decisive importance◆absolutely essential / vital / crucial / critical / decisive / indispensable / imperative / pivotal◆quite essential / vital / crucial / critical / decisive / indispensable■ essential extremely important and completely necessary, because without it sth cannot exist, be made or be successful 極其重要的；完全必要的；必不可少的◆Experience is essential for this job.對於這個工作，經驗是非常重要的。◆Money is not essential to happiness.金錢並非是幸福必不可少的條件。◆It is essential that you have some experience.你必須要有些經驗，這很重要。◆It is essential to keep the two groups separate.將這兩個組隔開是完全必要的。◆The museum is closed while essential repairs are being carried out.博物館現正關閉以進行必要的修繕。OPP inessential ⓘ Inessential things are not necessary. * inessential指不必要的◆inessential luxuries不必要的奢侈品   see also essential ⇨ need noun ■ vital ˈvaɪtl essential 極其重要的；完全必要的；必不可少的◆Bean sprouts contain many of the vitamins that are vital for health.豆芽含有多種對健康來說必不可少的維生素。◆Good financial accounts are vital to the success of any enterprise.妥善的金融賬目對任何企業的成功都至關重要。◆It is vital that you keep accurate records when you are self-employed.從事個體經營的人要準確記錄賬目，這十分重要。◆The police play a vital role in our society.警察在我們的社會中起着極其重要的作用。▸ vitally

adverb

◆Education is vitally important for the country's future.教育對國家的未來是極其重要的。NOTE 辨析 Essential or vital?There is no real difference in meaning between these words and they can be used with the same range of nouns and structures. However, there can be a slight difference in tone. Essential is used to state a fact or opinion with authority. Vital is often used when there is some anxiety felt about sth, or a need to persuade sb that a fact or opinion is true, right or important. Vital is less often used in negative statements. 這兩個詞在含義上沒有實質差别，所搭配的名詞和結構也相同，但是語氣上略有差異。essential指用權威的語氣陳述事實或觀點，vital常用於表示有些焦慮的語氣，或用於勸說某人相信某一事實或觀點是真實、正確或重要的。vital不常用於否定句◆It was vital to show that he was not afraid.重要的是要表現出他毫不畏懼。◆Money is not vital to happiness. ■ crucial ˈkruːʃl extremely important because a particular situation or activity depends on it 至關重要的；關鍵的◆Winning this contract is absolutely crucial to our long term success.赢得這份合同對我們的長期成功絕對是至關重要的。◆It is crucial that we get this right.我們把這個問題弄明白是極其重要的。◆He wasn't there at the crucial moment (= when he was needed most).緊要關頭他卻不在那裏。▸ crucially

adverb

◆These things are all crucially important.這些事情全都極其重要。■ critical ˈkrɪtɪkl crucial 至關重要的；關鍵的◆Price and availability are the critical factors that will determine product success.價格和購買是否便利都是決定産品成功的關鍵因素。◆If the temperature drops those critical two degrees, the engine will stop functioning.如果溫度降低那關鍵的兩度，發動機將停止運轉。▸ critically

adverb

◆The next few days will be critically important to the President's election chances.今後的幾天對總統選舉的成敗至關重要。NOTE 辨析 Crucial or critical?There is no real difference in meaning between these words and they can be used with the same range of nouns and structures. However, there is sometimes a slight difference in context. Critical is often used in technical matters of business or science; crucial is often used to talk about matters that may cause anxiety or other emotions. 這兩個詞在含義上沒有實質差别，所搭配的名詞和結構也相同，但是使用語境略有差異。critical常用於商務或科學語境談論專業問題，crucial常修飾可能引發焦慮或其他情感的事情。■ decisive dɪˈsaɪsɪv of the greatest importance in affecting the final result of a particular situation 決定性的；關鍵的◆Gettysburg was the decisive battle of the Civil War.葛底斯堡戰役在美國内戰史上具有決定性的意義。◆Signing the treaty was a decisive step (= an important action that will change a situation) towards a cleaner environment.條約的簽署是向更潔淨的環境邁出的關鍵性一步。ⓘ Decisive is not used simply to mean 'extremely important'. * decisive不單單表示非常重要◆Reducing levels of carbon dioxide in the atmosphere is of decisive importance. It is used when you are making a judgement that sb/sth was or will be the most important fact affecting the result of a particular past or future situation. * decisive是指對過往或將來之事態發展結果具決定性影響的◆Morrison scored the decisive goal in the 75th minute of the game.莫裏森在比賽進行到75分鐘時進球得了關鍵的一分。 ▸ decisively

adverb

◆The governing party is expected to win decisively in the elections.預計執政黨將在大選中獲得決定性的勝利。■ indispensable ˌɪndɪˈspensəbl essential; too important to be without 不可或缺的；必不可少的◆Cars have become an indispensable part of our lives.汽車已經成爲我們生活中必不可少的一部分。◆She made herself virtually indispensable to the department.她成功地讓自己成了這個部門的中堅分子。OPP dispensable ⓘ Dispensable things are not necessary and can be got rid of. * dispensable指不必要的、可有可無的◆They looked on music and art lessons as dispensable.他們覺得音樂課和藝術課可有可無。 ■ imperative ɪmˈperətɪv [not usually before noun] (formal) extremely important and needing immediate attention or action 重要緊急的；迫切的；急需處理的◆It is absolutely imperative that we finish by next week.我們的當務之急是在下周内把事情完成。■ pivotal ˈpɪvətl (rather formal, especially written) extremely important because a particular situation or activity depends on it 關鍵性的；核心的◆The Foreign Secretary has played a pivotal role in European affairs.外交部長在歐洲事務中起到了關鍵性的作用。◆Accountancy, law and economics are pivotal to a successful career in any financial services area.會計學、法學和經濟學在任何金融服務領域都是事業成功的關鍵。ⓘ Pivotal is used especially to describe the part that sb/sth plays in a particular situation; it is not used to describe items or actions that are just extremely important. * pivotal尤指在某一情形下所起的關鍵性作用，不用於描述非常關鍵的事物或行爲◆pivotal services/supplies/repairs ◆It is pivotal that we get this right. ■ of the ˈessence

idiom

 (rather informal) essential 必不可少；非常重要◆In this situation time is of the essence (= we must do things as quickly as possible).在這種情況下，時間是關鍵。◆Speed is of the essence when transporting casualties to hospital.運送傷者去醫院時，速度至關重要。

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