| 词汇 | signal |
| 释义 | signal (verb) signal (adjective) signal 5 ENTRIES FOUND: signal (noun) signal (verb) signal (adjective) turn signal (noun) mixed (adjective) 1 signal /ˈsɪgnl̟/ noun plural signals 1 signal /ˈsɪgnl̟/ noun plural signals Learner's definition of SIGNAL [count] 1 : an event or act which shows that something exists or that gives information about something : sign信号（事件或行为） The change in his behavior is clearly a signal [=indication] that there is a problem.他行为的改变清楚地表明存在问题。 He likes her but he is sending the wrong signals with his constant teasing.他喜欢她，可是他不断的戏弄给了她错误的信号。 — often + of Inflammation is a signal of infection.发炎是感染的信号。 2 : something (such as a sound, a movement of part of the body, or an object) that gives information about something or that tells someone to do something信号，暗号（声音、身体动作或某物体等） Don't start until I give the signal. [=sign]等我发出信号再开始。 The teacher gave us the signal to finish what we were working on and hand in our tests.老师示意我们结束做题，上交试卷。 The pilot sent out a distress signal [=a message that the airplane was in danger] before the plane crashed.飞行员在飞机坠毁前发出了求救信号。 They communicated with each other by using hand signals. [=movements of a person's hands that mean something]他们彼此用手势交流。 3 : a piece of equipment with colored lights that is used on railways and roads to tell people when to go, to slow down, or to stop交通信号灯；红绿灯 Faulty wiring in the train station caused a signal to malfunction.火车站的线路故障导致了信号灯失灵。 The traffic signal [=traffic light] was not working.交通信号灯坏了。 4 technical a : a message, sound, or image that is carried by waves of light or sound（传播信息、声音、图像等的光波或声波的）信号 The video/TV signal is scrambled.视频/电视信息被扰频。 Satellite dishes receive television signals.卫星电视的碟形天线接收电视信号。 a digital signal数字信号 The transmitter beams radio signals into space.发射机向太空发射无线电信号。 b : a wave of light or sound that carries a message, sound, or image（传播信息、声音或图像的）光波，声波 We'll need better equipment to generate a 50 Hz signal.为产生50赫兹的声波，我们需要更好的设备。 busy signal — see 1busy mixed signals — see mixed 2 signal /ˈsɪgnl̟/ verb signals US signaled or British signalled US signaling or British signalling 2 signal /ˈsɪgnl̟/ verb signals US signaled or British signalled US signaling or British signalling Learner's definition of SIGNAL 1 [+ object] : to be a sign of (something) : to show the existence of (something)标志；表明 Robins signal the arrival of spring.知更鸟是春天到来的标志。 The election results surely signal the start/beginning of a new era.选举结果无疑标志着一个新纪元的开始。 He signaled [=showed, communicated] his irritation by sighing and rolling his eyes dramatically.他夸张地叹息、翻白眼，以示自己非常恼怒。 Redness, swelling, and painful itching signal [=indicate] an infection.发红、肿胀、又疼又痒说明有感染。 A lock on the suitcase might signal that there's something of value inside.手提箱上的锁表明里面可能有贵重物品。 2 : to make a sound or motion that tells someone something发信号；示意 [no object] Did he signal before he made the left turn?他左转之前开转向灯了吗？ They signaled at me to come over to their table.他们示意我去他们那桌。 We signaled for help.我们发出了求救信号。 [+ object] He signaled us that it was time to begin the meeting.他示意我们是时候开始会议了。 The umpire signaled a strike.裁判用手势示意这一球为好球。 3 signal /ˈsɪgnl̟/ adjective 3 signal /ˈsɪgnl̟/ adjective Learner's definition of SIGNAL always used before a noun formal : very important or great : significant重大的；显要的 Is he worthy of such a signal honor?他够格获得如此大的荣誉吗？ The bill's passage was a signal [=notable] victory for environmentalists.这项法案的通过是环境保护者的一个重大胜利。 — signally /ˈsɪgnəli/ adverb The mayor has signally failed to do what he promised to do.市长显然没有兑现自己的承诺。 |
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