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signal ['signəl]    添加到生词本 复制网址
基本释义
  • n. 信号,导火线,动机;
    v. 向...作信号;
    v. 表明，预示
词形变化
  • 时　态：sig·naled or sig·nalled, sig·nal·ing or sig·nal·ling
    名　词：sig'nal·er, sig'nal·ler
常用短语
    1. distress signal
      遇难信号,呼救信号
    2. signal box
      n.(铁路上的)信号塔,(警察或火警系统的)警报箱
    3. signal flag
      n.信号旗,手旗
    4. time signal
      n. 报时信号
    5. background signal
      本底信号
    6. output signal
      输出信号
    7. signal detection
      信号检测
    8. signal level
      信号电平，信号级
    9. signal-to-noise ratio
      信号干扰比
    10. starting signal
      出站信号
    11. storm signal
      风暴信号
    12. traffic signal
      交通信号
    13. visual signal
      视觉信号，指示信号
    14. warning signal
      警告信号，警告信号
    15. radio signal
      无线电信号
    16. signal fire
      n. 烽火,烽火信号
    17. turn signal
      n. [空]转弯指示灯,(车辆的)方向灯
    18. input signal
      【电】 输入信号
    19. signal light
      【化】 信号灯
参考例句
    1. The airplane signaled for help.
      飞机发出求救信号。
    2. The lighthouse flashes signals twice a minute.
      灯塔每分钟发出两次信号。
    3. To make a signaling or summoning gesture.
      做一个发信号或召唤的姿势。
    4. transmissible messages;transmissible signals.
      可传送的信息;可传达的信号
    5. She was signaling wildly, waving her arms.
      她奋力挥臂发信号。
英英解释

  • 　2个动词解释

    1. communicate silently and non-verbally by signals or signs
      [同] sign, signal, signalise, signalize
      [例]
      • He signed his disapproval with a dismissive hand gesture
      • The diner signaled the waiters to bring the menu
    2. be a signal for or a symptom of
      [同] indicate, bespeak, betoken, point, signal
      [例]
      • These symptoms indicate a serious illness
      • Her behavior points to a severe neurosis
      • The economic indicators signal that the euro is undervalued

    　3个名词解释

    1. any communication that encodes a message
      [同] sign, signal, signaling
      [例]
      • signals from the boat suddenly stopped
    2. any incitement to action
      [例]
      • he awaited the signal to start
      • the victory was a signal for wild celebration
      3. show all ... ( 3 )

    　1个形容词解释

    1. notably out of the ordinary
      [例]
      • the year saw one signal triumph for the Labour party