94生活常识网有道词典

signal

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音标发音

  • 英式音标 ['sɪgn(ə)l'signəl'sɪɡnəl]
  • 美式音标 [ˈsɪɡ.nəl]
  • 英式发音
  • 美式发音

基本解释

  • n. 信号；暗号；导火线
  • vt. 标志；用信号通知；表示
  • adj. 显著的；作为信号的
  • vi. 发信号
  • n. (Signal)人名；(瑞典)西格纳尔

词源解说

  • 14世纪晚期进入英语，直接源自古法语的signal；最初源自古典拉丁语的signum，意为信号，符号。

词根记忆

  • 来自sign(n.标记)
  • sign(签名) + al→用签名作为自己的标志→标志

同根派生

  • adj性质的同根词
    signed：有符号的；已签字的；有正负之分的。
  • adv性质的同根词
    signally：显著地；突出地；非凡地。
  • n性质的同根词
    sign：迹象；符号；记号；手势。
    signage：引导标示。
    signaling：发信号；打信号。
    signer：签名者；用手势示意者。
    sigint：通信情报，信号情报（指对无线电信号监听，截获和破译获得的情报）。
    signaler：信号装置；信号员。
    signalisation：信号通知。
    signalization：信号作用。
    signaller：通讯兵；信号装置。
    signalman：信号员；信号手。
  • v性质的同根词
    signed：署名；写下；预示；示意（sign的过去分词）。
  • vi性质的同根词
    sign：签署；签名。
    signalize：发信号。
  • vt性质的同根词
    sign：签署；示意。
    signalise：使…显著；用信号通知；庆祝；突出地表明。
    signalize：使显眼；使著名；向…发信号。

用法辨析

    v. (动词)

  • signal用作及物动词时,可接名词、代词或that/wh从句作宾语。signal还可接双宾语,常以带或不带疑问词的动词不定式作直接宾语,其间接宾语可以由介词to引出, to可以省略。不用于被动结构。

英汉例句

    用作名词 (n.)

  • Signals are made with flags or lamps.
    用旗或灯传递信号。

    • 用作动词 (v.)

    用作不及物动词: S+～(+A)

  • She is signaling.
    她正在发送信号。

    • 用作及物动词: S+～+ n./pron.

  • She signaled the advance.
    她发出信号前进。

    • S+～+that-clause

  • She signaled that he was about to turn left.
    她打信号灯表示他就要转到左面去了。

    • S+～+wh-clause

  • They signaled which way one is going to turn?
    他们打信号示意走哪一条路。

    • 用作双宾动词: S+～+ pron./n. +to n./pron

  • He signaled a message to his brother.
    他用信号向他哥哥发信息。

    • S+～+(to) n./pron. +to- v

  • He signaled the waiter to bring the menu.
    他做手势要侍者拿菜单来。

    • S+～+(to) n./pron. +wh-to- v

  • Tom signaled his friend which way to go.
    汤姆示意他的朋友走哪条路。

词组短语

    用作名词 (n.)

    动词+～

  • catch the signal 见到那信号
  • give 〔ignore〕 a signal 给〔忽视〕信号
  • produce signals 产生信号
  • put up 〔send〕 a signal 发信号
  • receive signals 接收信号

英英字典

    剑桥英英字典

  • (ACTION) an action, movement, or sound that gives information, a message, a warning, or an order
  • (WAVE) a series of electrical or radio waves that are sent to a radio or television in order to produce a sound, picture, or message
  • (SHOWING) something that shows that something else exists or is likely to happen
  • (EQUIPMENT) equipment, especially on the side of a railway or road, often with lights, that tells drivers to stop, continue, or go more slowly
  • (ACTION) to make a movement, sound, flash, etc. that gives information or tells people what to do
  • (SHOW) to show that you intend or are ready to do something
  • noticeable and unusual

    • 柯林斯英英字典

  • A signal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it.
  • If you signal to someone, you make a gesture or sound in order to send them a particular message.
  • If an event or action is a signal of something, it suggests that this thing exists or is going to happen.
  • If someone or something signals an event, they suggest that the event is happening or likely to happen.
  • A signal is a piece of equipment beside a railway, which indicates to train drivers whether they should stop the train or not.
  • A signal is a series of radio waves, light waves, or changes in electrical current which may carry information.

专业释义

    计算机科学技术

  • 暗号
  • 信号
  • 讯号

    • 土木建筑工程

  • 讯号

    • 机械工程

  • 信号
  • 讯号
  • 号志
  • 号志机

    • 电子、通信与自动控制技术

  • amp;amp;信号
  • 通信amp;amp;
  • 讯号
  • 信号

    • 交通运输工程

  • 信号

    • 生物学

  • 信号