| 单词 | signal |
| 释义 | signal noun¹ 1sign/action/sound that sends a message标志；动作；声音adjective | verb + signal | signal + verb | preposition adjective➤clear, unmistakable清晰的／明确无误的信号▸➤agreed, prearranged约好的／事先约定的信号▸➤conflicting, confusing, contradictory, mixed相互冲突的信号；让人迷惑不解的信号；有歧义的信号▸➤wrong错误信号◆laughing when you should be crying sends out the wrong signals to people.应该哭的时候却笑，就向人们传达了错误的信号。➤alarm, danger, distress, warning报警／危险／求救／警告信号▸➤hand, non-verbal, smoke, visual手势；非语言信号；烟雾信号；视觉信号▸➤turn (name) （汽车上的）转向指示灯▸➤busy (name) (engaged tone in bre) （电话占线时的）忙音◆all i get is a busy signal when i dial his number.我给他拨电话只能听到占线的忙音信号。➤buy, sell (both business商业) 买入／卖出信号◆a strong buy signal was issued to traders.交易员收到了强烈的买入信号。verb + signal➤give (sb), make, send, send out（给某人）发信号；打信号◆when i give the signal, run!我一发信号，你就跑！➤interpret, read解读信号◆the brain interprets the signals from the retina as light.大脑把来自视网膜的信号解读为光。➤interpret sth as把⋯理解为信号◆the remark was interpreted as a signal that their government was ready to return to the peace talks.该言论被视作政府准备重回和平谈判的信号。➤pick up, respond to领会信号；对信号作出反应◆interviewers quickly learn to pick up non-verbal signals.采访者很快学会读懂非语言信号。➤act as作为信号◆the insect's yellow spots act as a warning signal to its predators.昆虫身上的黄点是向其天敌发出的警告信号。signal + verb➤come from sth信号来自⋯◆try to read the signals coming from the patient.要尽量读懂病人发出的信号。➤indicate sth信号表示⋯◆the signals that can indicate danger可能预示危险的信号preposition➤at a signal, on a signal按照信号◆at a prearranged signal, everyone started cheering.看到预先约好的信号，大家都开始欢呼起来。➤signal for示意⋯的信号◆she made a signal for the car to stop.她打了个手势，让汽车停下了。➤signal from, signal to来自⋯的／给⋯的信号◆wait for the signal from the leader of your group.等你们组的组长发出信号。signal noun² 2set of lights for drivers交通信号灯adjective | verb + signal | signal + verb | signal + noun adjective➤railroad, railway, traffic铁路信号灯；交通信号灯verb + signal➤operate操作信号灯signal + verb➤be on red/green, be red/green红灯亮；绿灯亮◆the traffic signals were on red.交通信号亮着红灯。➤fail信号灯失灵signal + noun➤box (bre) （铁路上的）信号楼▸➤failure (bre) 信号灯故障signal noun³ 3series of radio waves, chemical messages, etc.无线电波；化学信息adjective | verb + signal | signal + verb | signal + noun | preposition adjective➤faint, weak微弱的信号▸➤strong强信号▸➤high-frequency, low-frequency高频／低频信号➤input, output输入／输出信号▸➤acoustic, analogue/analog, audio, chemical, digital, electrical, electronic, gps, light, radar, radio, satellite, sonar, sound, television, tv, video, wireless声学信号；模拟信号；音频信号；化学信号；数字信号；电信号；电子信号；全球定位系统信号；光信号；雷达信号；无线电信号；卫星信号；声纳信号；音频信号；电视信号；视频信号；无线信号verb + signal➤carry, pass, relay传送／传递／中继转发信号◆the nerves carry these signals to the brain.神经把这些信号传给大脑。➤amplify, boost放大／增强信号▸➤convert (sth into), scramble（把⋯）转换成信号；对信号作扰码处理◆the signal is scrambled into code before it is sent.发送信号之前要先扰码，把它变成密码。➤decode, encode解码信号；把信号编码▸➤emit, generate, produce, send, transmit发射信号；发出信号；发送信号▸➤detect, pick up, receive, respond to探测信号；接收信号；对信号作出回应◆this equipment can detect very low-frequency signals.这种设备能够探测甚低频信号。➤block, jam拦截／干扰信号◆it is possible to jam gps signals in battle.在作战时对全球定位系统的信号进行干扰是可能的。signal + verb➤travel信号传播◆the digital signal travels down wires to the server.数字信号沿着线路传到服务器。◆a light signal can travel well over 16 km before it halves in intensity.光信号传播 16 公里以上强度才会减半。➤fade信号渐弱signal + noun➤intensity, strength信号强度preposition➤signal from来自⋯的信号◆a faint signal from the satellite卫星发出的微弱信号➤signal to向⋯发出的信号signal verb¹ 1move your arms to give a signal打手势adverb | preposition adverb➤frantically疯狂打手势◆i saw her signal frantically to us.我看见她疯了似的朝我们打手势。preposition➤for示意⋯◆he raised his hand to signal for the waiter.他举起手向侍者示意。➤to向⋯打手势◆she tried to signal to the bus driver to stop.她试图打手势让公共汽车司机停车。signal verb² 2show/mark sth表明adverb | verb + signal adverb➤clearly清楚地标志◆these changes clearly signal the end of the welfare state as we know it.这些变化清楚地标志着我们熟悉的福利国家的终结。➤effectively (especially bre) 实际上表明◆a change of mind effectively signals a change in overall policy.改变主意实际上意味着整个政策有所改变。➤not necessarily不一定预示◆a fall in demand does not necessarily signal the death of the industry.需求的减少并不一定意味着该行业走向穷途末路。verb + signal➤appear to, seem to似乎／好像预示◆these events appeared to signal the end of an era.这些事件似乎预示着一个时代的结束。➤try to试图表明➤be intended to, be meant to旨在／意欲表明◆this address was meant to signal a change in policy.这个讲话意欲表明政策将有所改变。signal nounsignal ♦︎ sign ♦︎ cuethese are all words for a movement, sound or event that gives sb information or tells sb to do sth.这些词均表示信号、暗号。patterns and collocations 句型和搭配◆a signal / sign / cue for sb / sth◆a signal / sign / cue (for sb) to do sth◆a clear signal / sign / cue◆a warning signal / sign◆to wait for / miss a / your signal / sign / cue◆to understand / misunderstand a / sb's signal / sign◆to give sb a signal / sign / cue◆to make a signal / sign■ signal [countable] a movement or sound that you make to give sb information, instructions, a warning, etc.示意的动作（或声音）；信号；暗号◆a danger / distress signal危险／求救信号◆at an agreed signal they left the room.收到约定的信号后，他们离开了房间。◆the siren was a signal for everyone to leave the building.警报声就是要所有人都离开大楼的信号。◆when i give the signal, run!我一发信号，你们就跑！◆ (name) all i get is a busy signal when i dial his number (= his phone is being used).我什么时候拨他的电话，听到的都是忙音。 ➡ see also signal → nod verb ■ sign [countable] a movement or sound that you make to tell sb sth示意的动作（或声音）；手势◆he gave a thumbs-up sign.他竖起大拇指表示赞同。◆she nodded as a sign for us to sit down.她点头示意我们坐下。note 辨析 signal or sign?a sign is usually a hand movement, and is often fairly fixed and likely to be understood by people in general; signal has a wider range, and may have been invented by individuals in a particular situation. * sign 通常指一种手势，而且常常是比较固定的，人们一般都能够理解； signal 的范围更广泛些，可能是个人在特定情况下发明出来的◆sign language (= a system of communicating with people by using hand movements rather than spoken words) 手势语◆a v-sign (= a sign that you make by holding up your hand and making a v-shape with your first and second fingers) v 字形手势◆we agreed on a signal to mean 'stop'.我们约定了一种表示“停止”的信号。■ cue [countable] an action or event that is a signal for sb to do sth暗示；提示；信号◆jon's arrival was a cue for more champagne.乔恩的到来意味着要喝更多的香槟酒。◆i think that's my cue to explain why i'm here.我想这是要我解释为什么到这里来。◆ (figurative) 'where is that boy?' as if on cue, simon appeared in the doorway (= as if sb had given him a signal).“那男孩在哪里？”这话一出，西蒙像接到了信号一样出现在门口。◆ (figurative) investors are taking their cue from the big banks and selling dollars (= taking what other people do as a sign for them to do the same).投资者看到大银行抛售美元，纷纷效法。signal(-ll-, name -l-) [transitive] (not used in the progressive tenses不用于进行时) (rather formal, especially written, journalism新闻) to be a sign that sth has just happened or is going to happen是⋯的迹象；表明；预示◆the scandal surely signals the end of his political career.毫无疑问，这桩丑闻预示他的政治生涯就此结束。note 辨析 mean, mark or signal?these words can all mean 'be a sign that sth has just happened or is going to happen': mean is used most frequently in spoken english, but mark and signal are used more frequently in this meaning in written english, especially in journalism.这些词均可表示“是⋯的迹象、表明、预示”。mean 最常用于口语，mark 和 signal 表达此义时较常用于书面语，尤用于新闻报道。signal(-ll-, name -l-) [intransitive, transitive] to make a movement or sound as a way of giving sb a message, order or instruction发信号；发暗号；示意◆don't fire until i signal.等我发出信号后再开枪。◆he signalled to the waiter for the bill.他示意服务员结账。◆the referee seemed to be signalling a foul.裁判似乎在示意犯规。ⓘ signal has a wider range of meaning than the other words in this group. you can signal to sb not only by making a hand or arm movement, but also by using a light, waving sth in the air, or making a sound. * signal 比本组中其他词的含义较广，不仅可指用手或臂的动作示意，亦可指靠使用灯光、在空中挥舞东西或发出声音来示意。 ➡ see also signal → signal noun signal [countable] a sign of sth标志；预示；信号◆chest pains can be a warning signal of heart problems.胸部疼痛可能是心脏病的警告信号。◆reducing prison sentences would send the wrong signals to criminals.减刑会向犯罪分子发出错误的信号。note 辨析 sign or signal? signal is often used to talk about an event, action or fact that suggests to sb that they should do sth. sign is not usually used in this way. * signal 常指提醒人们应该采取行动的暗号、信号，sign 通常不这样用◆reducing prison sentences would send the wrong signs to criminals. signal [countable] a movement or sound that you make to give sb information, instructions, a warning, etc.示意的动作（或声音）；信号；暗号◆a danger / distress signal危险／求救信号◆at an agreed signal they left the room.收到约定的信号后，他们离开了房间。◆the siren was a signal for everyone to leave the building.警报声就是要所有人都离开大楼的信号。◆when i give the signal, run!我一发信号，你们就跑！◆ (name) all i get is a busy signal when i dial his number (= his phone is being used).我什么时候拨他的电话，听到的都是忙音。 ➡ see also signal → nod verb signal/ˈsɪgnəl ||; ˈsɪgnḷ/noun[c] 1. a sign, action or sound that sends a particular message 信号；暗号: ◇when i give (you) the signal, run! 我一发出信号，你就跑！ 2. an event, action or fact that shows that sth exists or is likely to happen 标志；表示: ◇the fall in unemployment is a clear signal that the economy is improving. 失业率下降明确标志着经济在改善。 3. a set of lights used to give information to train drivers 铁路信号灯 4. a series of radio waves, etc that are sent out or received （无线电波等传送的）信号: ◇a signal from a satellite 恒星信号 signal verb [i,t] (signalling;signalled (us 美) signaling;signaled) ◇she was signalling wildly that something was wrong. 她拚命示意出了事。 signalsee ⇨ sign 3,4 • • •• ⇨ give the signal☞ signal¹☞ signal² |
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