certain

音標(biāo)發(fā)音

• 英式音標(biāo) ['s??t(?)n; -t?n]
• 美式音標(biāo) [?s??.t?n]
• 國(guó)際音標(biāo) ['s?:t?n]
• 英式發(fā)音
• 美式發(fā)音

基本解釋

• adj.確定的；肯定的；某事；某人；某種；（與人名連用；表示不認(rèn)識(shí)此人）一位叫...；特定的；輕微的；微小的
• pron.某些；某幾個(gè)

詞源解說(shuō)

• 1300年左右進(jìn)入英語(yǔ)，直接源自古法語(yǔ)的certain；最初源自拉丁語(yǔ)的certus，意為確定的。

詞根記憶

• cert(搞清) + (t)ain(拿住)→對(duì)搞清楚的事情很有把握→確定的

同根派生

• adv性質(zhì)的同根詞

  certainly：當(dāng)然；行（用于回答）；必定。

• n性質(zhì)的同根詞

  certainty：必然；確實(shí)；確實(shí)的事情。

• certain相關(guān)詞

用法辨析

adj. (形容詞)

• certain的基本意思是“確信無(wú)疑的”或“毋庸置疑的”,即“肯定的,確信的”,在句中常用作表語(yǔ)。其后可接動(dòng)詞不定式,表示“相信(某人)會(huì)做某事”。
• certain的另一個(gè)意思是“某一,某種”,在句中只能用作定語(yǔ),常與不定冠詞a連用,修飾單、復(fù)數(shù)名詞或抽象名詞,表示“因故而未加具體說(shuō)明的人、物、地點(diǎn)、時(shí)間等”。
• be certain用于祈使句,意思是“一定要設(shè)法辦到…”。
• It is/was certain that...表示說(shuō)話人的看法，其中certain 不可用certainly或sure代替。在否定句中,多接以疑問(wèn)詞whether,what,how等引導(dǎo)的從句。
• certain前不能用very或extremely修飾,如需強(qiáng)調(diào)可用absolutely或completely等詞修飾。
• 短語(yǔ)動(dòng)詞make certain的意思是“弄確實(shí),弄清楚”,其后可接of引起的動(dòng)名詞短語(yǔ)或that從句。
• certain表示“某個(gè)，某些”時(shí)，作形容詞或代詞，如a certain friend of his或certain of his；
• certain作形容詞表示“一些”時(shí)，常修飾抽象名詞，如a certain hesitation，a certain coldness；

• certain使用方法
• certain詳細(xì)辨析

英漢例句

用作形容詞 (adj.)

用作定語(yǔ): ～+ n.

• A certain person called on me yesterday.
  昨天有人來(lái)找過(guò)我。

用作表語(yǔ): S+be+～

• His ear for music was certain.
  他對(duì)音樂(lè)的鑒賞力毋庸置疑。

S+be+～+to- v

• We are certain to win the game.
  我們一定能打勝這場(chǎng)比賽。

S+be+～+(that/)wh-clause

• I'm certain that he had seen me.
  我敢肯定他看見(jiàn)我了。

It is/was+～+to- v

• It is certain to rain.
  (我們相信)天一定會(huì)下雨。

It is/was+～+(that/)wh-clause

• It is now certain that he won the election.
  他在本次選舉中獲勝現(xiàn)在確定無(wú)疑。

• certain更多例句

詞組短語(yǔ)

用作形容詞 (adj.)

～+名詞

• certain circumstance 某種情況
• certain extent 一定程度上
• certain reason 某種理由
• certain year 某年

副詞+～

• absolutely certain 絕對(duì)肯定
• almost certain 幾乎可以肯定的

• certain更多詞組

英英字典

劍橋英英字典

• (WITHOUT DOUBT) having no doubt or knowing exactly that something is true, or known to be true, correct, exact, or effective
• (EXTREMELY LIKELY) impossible to avoid or extremely likely
• (NAMED) named but neither famous nor known well
• (LIMITED) limited
• particular but not named or described
• some

柯林斯英英字典

• If you are certain about something, you firmly believe it is true and have no doubt about it. If you are not certain about something, you do not have definite knowledge about it.
• If you say that something is certain to happen, you mean that it will definitely happen.
• If you say that something is certain, you firmly believe that it is true, or have definite knowledge about it.
• If you know something for certain, you have no doubt at all about it.
• If you make certain that something is the way you want or expect it to be, you take action to ensure that it is.
• You use certain to indicate that you are referring to one particular thing, person, or group, although you are not saying exactly which it is.
• You use a certain to indicate that something such as a quality or condition exists, and often to suggest that it is not great in amount or degree.
• When you refer to certain of a group of people or things, you are referring to some particular members of that group.

• certain劍橋字典
• certain柯林斯字典

專業(yè)釋義

經(jīng)濟(jì)學(xué)

• 確定性

  Cautious decision makers in campus are easier disturbed by framing and certain factors.
  保守型大學(xué)生比冒險(xiǎn)型更容易受到框架方式和確定性因素的干擾。

  計(jì)算機(jī)科學(xué)技術(shù)

• 確定的