defend

音標(biāo)發(fā)音

• 英式音標(biāo) [d??fend]
• 美式音標(biāo) [d??f?nd]
• 國(guó)際音標(biāo) [di'fend]
• 英式發(fā)音
• 美式發(fā)音

基本解釋

• vt. 辯護(hù)；防護(hù)
• vi. 保衛(wèi)；防守

詞源解說(shuō)

• 13世紀(jì)中期進(jìn)入英語(yǔ)，直接源自古法語(yǔ)的defendre；最初源自古典拉丁語(yǔ)的defendere：de (離開(kāi)） + fendere (擊打，推），意為擊打開(kāi)來(lái)，推開(kāi)。

詞根記憶

• de(使沒(méi)有) + fend(打擊)→使不受打擊→防御；防護(hù)

同根派生

• adj性質(zhì)的同根詞

  defendant：辯護(hù)的；為自己辯護(hù)的。

  defensive：自衛(wèi)的；防御用的。

  defending：衛(wèi)冕的；防御中的；防守型的。

  defensible：可防御的；可辯護(hù)的；可擁護(hù)的。

  defenseless：無(wú)防備的。

  defenceless：（英）無(wú)防御的；無(wú)保護(hù)的。

  defendable：可防御的。

• adv性質(zhì)的同根詞

  defensively：防御地；守勢(shì)地。

• n性質(zhì)的同根詞

  defense：防衛(wèi)，防護(hù)；防御措施；防守；vt.謀劃抵御。

  defence：防御；防衛(wèi)；答辯；防衛(wèi)設(shè)備。

  defendant：被告。

  defensive：防御；守勢(shì)。

  defender：防衛(wèi)者，守衛(wèi)者；辯護(hù)者；擁護(hù)者；衛(wèi)冕者。

  defensiveness：防御；防御性。

  defenselessness：無(wú)防御。

• v性質(zhì)的同根詞

  defending：防護(hù)；防衛(wèi)（defend的ing形式）。

• defend相關(guān)詞

用法辨析

v. (動(dòng)詞)

• defend的基本意思是避開(kāi)危險(xiǎn)和進(jìn)攻以保證安全,指使用某種方法避開(kāi)實(shí)際的威脅或擊退實(shí)際的攻擊。引申可指堅(jiān)持、捍衛(wèi)某種行動(dòng)、意見(jiàn)、決定或捍衛(wèi)某種原則的純潔性。
• defend可用作不及物動(dòng)詞,也可用作及物動(dòng)詞,用作及物動(dòng)詞時(shí),按名詞、代詞或that從句作賓語(yǔ)。偶爾也可接雙賓語(yǔ),可用于被動(dòng)結(jié)構(gòu)。
• defend常與against連用表示“防守,捍衛(wèi)”; 與from連用表示“保護(hù)…以防,使…免遭危害”。

• defend使用方法
• defend詳細(xì)辨析

英漢例句

用作動(dòng)詞 (v.)

用作不及物動(dòng)詞: S+～(+A)

• He is better at defending than attacking.
  他的防御能力比進(jìn)攻能力強(qiáng)。

用作及物動(dòng)詞: S+～+ n./pron./v -ing

• Finally they took up arms to defend themselves.
  他們最后終于拿起武器進(jìn)行自衛(wèi)。

S+～+that-clause

• God defends that ever I should do such a thing.
  上帝決不允許我做這樣的事。

用作賓補(bǔ)動(dòng)詞: S+～+ n./pron. + adj.

• This was his world, he could defend it secure from fear.
  這是他的世界,他能使它免受恐懼。

• defend更多例句

詞組短語(yǔ)

用作動(dòng)詞 (v.)

～+名詞

• defend a place 保衛(wèi)一個(gè)地方
• defend a theory 支持某種理論
• defend a child 保護(hù)孩子
• defend interests of 捍衛(wèi)…的利益
• defend one 's title 保住某人的權(quán)力

• defend更多詞組

英英字典

劍橋英英字典

• (PROTECT) to protect someone or something against attack or criticism; to speak in favour of someone or something
• (IN COURT OF LAW) to act as a lawyer for someone who has been accused of something in a court of law and try to prove that they are not guilty
• (IN SPORT) to compete in a sports competition that you won before and try to win it again

柯林斯英英字典

• If you defend someone or something, you take action in order to protect them.
• If you defend someone or something when they have been criticized, you argue in support of them.
• When a lawyer defends a person who has been accused of something, the lawyer argues on their behalf in a court of law that the charges are not true.
• When a sports player plays in the tournament which they won the previous time it was held, you can say that they are defending their title.

• defend劍橋字典
• defend柯林斯字典

專(zhuān)業(yè)釋義

法學(xué)

• 辯護(hù)

計(jì)算機(jī)科學(xué)技術(shù)

• 防御

  Identity authentication and access control are the major security mechanisms to defend active attack.
  身份認(rèn)證與訪問(wèn)控制是信息系統(tǒng)防御主動(dòng)攻擊的主要安全機(jī)制。

  經(jīng)濟(jì)學(xué)

• 防范

  Commercial bank credit management can defend liquidity and security, keep away risk of finance.
  商業(yè)銀行信用管理對(duì)預(yù)防和加強(qiáng)銀行流動(dòng)性和安全性，防范和化解信用風(fēng)險(xiǎn)等起著極其重要的作用。

  電子、通信與自動(dòng)控制技術(shù)

• 防御

  In the modem naval battle the ships generally discharge chaff-jamming to defend the attack of missiles equipped with tip-guide radar system and receive the effective result.
  現(xiàn)代海戰(zhàn)中，水面艦艇為了防御采用末制導(dǎo)雷達(dá)的反艦導(dǎo)彈的攻擊，普遍施放了成本低廉效果明顯的箔條干擾。

  體育

• 防守

藝術(shù)學(xué)

• 超越

交通運(yùn)輸工程

• 保衛(wèi)