| 词汇 | signal |
| 释义 | signal noun[ C ] uk /ˈsɪɡ.nəl/ us /ˈsɪɡ.nəl/ signalnoun[C] (ACTION)B2 an action, movement, or sound that gives information, a message, a warning, or an order: 信号 give (someone) the signalWhen she gave (them) the signal, they all cheered.她发出信号后，他们都欢呼起来。 [ + that ]The fireworks were a signal that the festival had started.焰火是节日开始的信号。 [ + to infinitive ]The police officer gave us the signal to stop.警察示意我们停下。 signal forThe signal for a race to start is often the firing of a gun.赛跑常以发令枪响作为开始的信号。 US(UKindicator) a turn signal（车辆）转向灯（同 turn signal） sandsun/iStock/Getty Images Plus/GettyImages At a prearranged signal, everyone started moving forwards. I usually set my watch by the time signal on the radio. At the given signal, the group rushed forward to the barrier.预定信号一发出，人群便向关卡冲去。 I've been trying to call him all evening, but I keep getting the engaged signal. A whistle is the signal for the children to line up ready to go into the classroom. The quarterback called his signals to the rest of the offence. The umpire made the signal that the batter was out. Signs, signals and symbols acid test backward slash backwards slash beacon breadcrumb cue hieroglyphic hieroglyphically iconographic iconographically iconography obelisk obelus octothorpe paraph penalty flag pointer the all-clear token torch You can also find related words, phrases, and synonyms in the topics: The exterior of vehicles signalnoun[C] (WAVE)B2 a series of electrical or radio waves that are sent to a radio or television in order to produce a sound, picture, or message（用于传输声音、图像或其他信息的）电波信号 The picture quality is bad because the TV signal isn't powerful enough.图像效果不好，因为电视信号不强。 The equipment sent out a regular high-pitched signal.这个设备发出有规律的高音信号。 There is some interference on the signal - do not adjust your set. Communications - general words anti-satellite app autodial autodialler bar hack multimode multipath noise non-computer non-network patch patch someone through silent trace watch party webchat Zoom bomb Zoombomber Zoombombing signalnoun[C] (SHOWING)something that shows that something else exists or is likely to happen: 迹象 signal ofThe loss is a clear signal of his deteriorating confidence.比赛输了，这清楚地表明他信心日渐不足。 signal thatThe changing colour of the leaves on the trees is a signal that it will soon be autumn.树叶颜色的改变表明秋天即将来临。 Signs, signals and symbols acid test backward slash backwards slash beacon breadcrumb cue hieroglyphic hieroglyphically iconographic iconographically iconography obelisk obelus octothorpe paraph penalty flag pointer the all-clear token torch signalnoun[C] (EQUIPMENT)equipment, especially on the side of a railway or road, often with lights, that tells drivers to stop, continue, or go more slowly: （尤指铁路或公路上的）信号灯 a railway signal铁路信号灯 a traffic signal交通信号灯 a road signal道路信号灯 Railways & railway lines aerial tram aerial tramway Amtrak artery branch line electrify funicular junction level crossing metro railroad RR siding signal box sleeper switch track underground unelectrified whistle-stop You can also find related words, phrases, and synonyms in the topics: Roads: lights, signs & markings on roads signal verb uk /ˈsɪɡ.nəl/ us /ˈsɪɡ.nəl/-ll- or US usually-l- signalverb (ACTION)C2[ I or T ] to make a movement, sound, flash, etc. that gives information or tells people what to do: 发信号;示意 signal something (to someone)Flashing lights on a parked car usually signal a warning (to other drivers).停着的车辆上闪烁的车灯通常是警告（其他驾车者）的信号。 He signalled left, and turned the lorry slowly.他打开左转方向灯，然后将卡车缓慢转过去。 He was signalling (= giving a signal) with a red flag.他正用红色旗子发信号。 signal forShe signalled for help.她发出了求救信号。 [ + that ]She signalled to the cars behind her that they were going the wrong way.她示意后面的车辆走错了路。 [ + obj + to infinitive ]The children's mother signalled them to be quiet.孩子们的母亲示意他们安静。 [ + to infinitive ]The children's mother signalled to/for them to be quiet.孩子们的母亲向他们示意保持安静。 She signalled to them to sit down. The ship signalled for help. A flashing light signalled that there was danger ahead. I signalled left and turned into the driveway. Communicating & keeping in touch approach backchannel bell call back call someone up catchup drop in contact with someone interactive interactively lose contact with someone/something make contact with someone/something noncommunicating reach ring tinkle unmute unreachable unreached via signalverb (SHOW)[ T ] to show that you intend or are ready to do something: 表达，表示;显示 [ + that ]The union has signalled that the workers will strike.工会表示工人们将会罢工。 The union has signalled the workers' intention to strike.工会已表示工人们打算罢工。 The death of Chairman Mao signalled (= marked) the end of an era in Chinese history.毛主席的去世标志着中国历史上一个时代的结束。 Signs, signals and symbols acid test backward slash backwards slash beacon breadcrumb cue hieroglyphic hieroglyphically iconographic iconographically iconography obelisk obelus octothorpe paraph penalty flag pointer the all-clear token torch signal adjective[ before noun ] formaluk /ˈsɪɡ.nəl/ us /ˈsɪɡ.nəl/ noticeable and unusual: 显著的；不寻常的 a signal success/failure重大胜利／失败 Unique and unusual accidental alt- alternative atypically be marked out as somethingidiom flip flip the scriptidiom guerrilla home brew incongruous peerless personalization personalized quaintly quaintness unforgettably unique uniquely unmatchable unmatched signal | American Dictionarysignal noun[ C ] us/ˈsɪɡ·nəl/ signalnoun[C] (ACTION)an action, movement, or sound that gives information, a message, a warning, or an order: I tried to call but kept getting a busy signal. When the lieutenant gave the signal, five police officers charged into the apartment. In retrospect, looking at how she was acting, we should have been able to recognize the danger signals. A signal is also a device, often with lights, that shows people or vehicles whether to stop, go, or move carefully. signalnoun[C] (WAVE)a series of energy waves that carry a sound, picture, or other information: a low-frequency radio signal signal adjective fmlus/ˈsɪɡ·nəl/ signaladjective (IMPORTANT)unusual and important: You performed a signal service to our people, and we wish to express our gratitude. signal verb[ I/T ] us/ˈsɪɡ·nəl/ signalverb[I/T] (MAKE MOVEMENT)to make a movement, sound, etc. that gives information or tells people what to do: [ I ]When you learn to drive, you are told that you have to signal before you turn right or left. [ T ]The police officer signaled us to stop. signal | Business Englishsignal noun[ C ] uk /ˈsɪɡnəl/us a sign that something is true or that something is going to happen: a signal to sbIt is a signal to the rest of the world that we are serious about global warming. a clear/strong /important signal a signal of sthIt was a strong signal of the power now wielded by big institutional investors. mixed/conflicting/contradicting signals the right/wrong signal a positive signal COMMUNICATIONS a series of electrical or radio waves that are sent to a radio, television, or mobile phone in order to produce a sound, picture, or message: I couldn't get a signal on my phone. signal verb[ T ] uk /ˈsɪɡnəl/usUK-ll- | US-l- to show that something is going to happen or that you are going to do something: Drops in sales signal a tough year ahead. signal thatIt recently signalled that it would not stand in the way of a takeover bid. Examples of signalsignal Where price signals are distorted we expect to see greater inefficiency and higher levels of pollution. Lower inflation rates not only lead to clearer pricing signals and better investment decisions by economic agents, but also protect fixed income earners. A genitive nominal, on the other hand, signals that the designated thing is not there as a participant of the event in question. During morphogenesis.positional information is conveyed to neiboring cells by signaling molecules. Biased attention to signals of threat or danger are thought to create cognitive distortions through a process of overactivation. Thus, it is possible that right prefrontal asymmetry results in reduced inhibitory signals toward the amygdala, which would then maintain aversive-related responses. The physiological context of signaling is mostly sidelined until the last two chapters, which are dedicated to signalling in development. On the other hand, discrete emotional signals may convey different information and be processed distinctly. The countdown task consisted of five trials with two separate conditions: signaled aversion and unsignaled aversion. Since the frequency of the signals emitted by the baroreceptors is known, this can be done spectrally, if the coupling is linear. The only temporal information that we are given by the linguistic signals is that, at the time referred to, the situation is in progress. If this attempt at signalling works, it does so by means of salience (pp. 158-9). If it is, then perhaps they emphasize noise because that might provide the prior signals on which modulatory processes operate. One common view is that they increase the salience of relevant signals. Thus, lower organisms are treated as inferring the internal states of other organisms from overt signals and then responding. See all examples of signal These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withsignalsignalThese are words often used in combination with signal. Click on a collocation to see more examples of it. acoustic signal Those variations in the acousticsignal that do not contribute to differences in meaning are simply not perceived by the listener. alarm signal In treated colonies, but not controls, workers were excitable and most began head rapping, an alarmsignal, if the colony was disturbed. analogue signal A sequence of measurements of an analoguesignal requires values both for time (horizontal axis) and for amplitude (vertical axis). These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with signal |
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