单词盒子

defend

D 开头单词

音标发音

  • 英式音标 [dɪˈfend]
  • 美式音标 [dɪˈfɛnd]
  • 国际音标 [di'fend]
  • 英式发音
  • 美式发音

基本解释

  • vt. 辩护；防护
  • vi. 保卫；防守

词源解说

  • 13世纪中期进入英语，直接源自古法语的defendre；最初源自古典拉丁语的defendere：de (离开） + fendere (击打，推），意为击打开来，推开。

词根记忆

  • de(使没有) + fend(打击)→使不受打击→防御；防护

同根派生

  • adj性质的同根词
    defendant：辩护的；为自己辩护的。
    defensive：自卫的；防御用的。
    defending：卫冕的；防御中的；防守型的。
    defensible：可防御的；可辩护的；可拥护的。
    defenseless：无防备的。
    defenceless：（英）无防御的；无保护的。
    defendable：可防御的。
  • adv性质的同根词
    defensively：防御地；守势地。
  • n性质的同根词
    defense：防卫，防护；防御措施；防守；vt.谋划抵御。
    defence：防御；防卫；答辩；防卫设备。
    defendant：被告。
    defensive：防御；守势。
    defender：防卫者，守卫者；辩护者；拥护者；卫冕者。
    defensiveness：防御；防御性。
    defenselessness：无防御。
  • v性质的同根词
    defending：防护；防卫（defend的ing形式）。

用法辨析

    v. (动词)

  • defend的基本意思是避开危险和进攻以保证安全,指使用某种方法避开实际的威胁或击退实际的攻击。引申可指坚持、捍卫某种行动、意见、决定或捍卫某种原则的纯洁性。
  • defend可用作不及物动词,也可用作及物动词,用作及物动词时,按名词、代词或that从句作宾语。偶尔也可接双宾语,可用于被动结构。
  • defend常与against连用表示“防守,捍卫”; 与from连用表示“保护…以防,使…免遭危害”。

英汉例句

    用作动词 (v.)

    用作不及物动词: S+～(+A)

  • He is better at defending than attacking.
    他的防御能力比进攻能力强。

    • 用作及物动词: S+～+ n./pron./v -ing

  • Finally they took up arms to defend themselves.
    他们最后终于拿起武器进行自卫。

    • S+～+that-clause

  • God defends that ever I should do such a thing.
    上帝决不允许我做这样的事。

    • 用作宾补动词: S+～+ n./pron. + adj.

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

词组短语

    用作动词 (v.)

    ～+名词

  • defend a place 保卫一个地方
  • defend a theory 支持某种理论
  • defend a child 保护孩子
  • defend interests of 捍卫…的利益
  • defend one 's title 保住某人的权力

英英字典

    剑桥英英字典

  • (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.

专业释义

    法学

  • 辩护

    • 计算机科学技术

  • 防御

    Identity authentication and access control are the major security mechanisms to defend active attack.
    身份认证与访问控制是信息系统防御主动攻击的主要安全机制。

    经济学

  • 防范

    Commercial bank credit management can defend liquidity and security, keep away risk of finance.
    商业银行信用管理对预防和加强银行流动性和安全性，防范和化解信用风险等起着极其重要的作用。

    电子、通信与自动控制技术

  • 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.
    现代海战中，水面舰艇为了防御采用末制导雷达的反舰导弹的攻击，普遍施放了成本低廉效果明显的箔条干扰。

    体育

  • 防守

    • 艺术学

  • 超越

    • 交通运输工程

  • 保卫