| 单词 | signal |
| 释义 | nounverbadjective🔑 sig·nalBrE /ˈsɪɡnəl/ NAmE /ˈsɪɡnəl/ noun 🔑 a movement or sound that you make to give sb information , instructions , a warning , etc .信号；暗号SYN sign◆ a danger /warning /distress , etc . signal 危险、警告、求救等信号◆ 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 . 警报器一响，就是要所有人离开大楼。◆ When I give the signal , run ! 我一发信号，你就跑！◆ (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。◆ hand signals (= movements that cyclists and drivers make with their hands to tell other people that they are going to stop , turn , etc .)（骑车人和驾车人的）示意手势 ➡ see also turn signal🔑 an event , an action , a fact , etc . that shows that sth exists or is likely to happen 标志；预示；信号SYN indication◆ The rise in inflation is a clear signal that the government's policies are not working . 通货膨胀率的上升清楚地表明，政府的政策不起作用。◆ Chest pains can be a warning signal of heart problems . 胸部疼痛可能是心脏病的先兆。◆ 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。signindication ⬥ symptom ⬥ symbol ⬥ indicator ⬥ signalThese are all words for an event, action or fact that shows that sth exists, is happening or may happen in the future.以上各词均指迹象、征兆、预兆。sign an event, action or fact that shows that sth exists, is happening or may happen in the future指迹象、征兆、预兆：◆Headaches may be a sign of stress.头痛可能是紧张的迹象。indication(ratherformal ) a remark or sign that shows that sth is happening or what sb is thinking or feeling指标示、象征：◆They gave no indication as to how the work should be done.他们根本没说明这项工作该怎样做。sign or indication?用 sign 还是 indication？An indication often comes in the form of sth that sb says; a sign is usually sth that happens or sth that sb does. * indication 常指通过某人说的话表明，sign 通常为发生的事或某人所做的事。symptom a change in your body or mind that shows that you are not healthy; a sign that sth exists, especially sth bad指症状、征候、征兆：◆Symptoms include a sore throat.症状包括嗓子疼。◆The rise in inflation was just one symptom of the poor state of the economy.通胀上升不过是经济不景气的一个征候。symbol a person, object or event that represents a more general quality or situation指象征：◆The dove is a universal symbol of peace.鸽子普遍象征着和平。indicator(ratherformal ) a sign that shows you what sth is like or how a situation is changing指指示信号、标志、迹象：◆the economic indicators经济指标signal an event, action or fact that shows that sth exists, is happening or may happen in the future指标志、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报警信号。sign or signal?用 sign 还是 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 常用以指应该采取行动的暗号、信号；sign 通常不用于此义：◆Reducing prison sentences would send the wrong signs to criminals.Patternsa(n) sign/indication/symptom/symbol/indicator/signal of stha(n) sign/indication/symptom/indicator/signal that…a clear sign/indication/symptom/symbol/indicator/signalan obvious sign/indication/symptom/symbol/indicatoran early sign/indication/symptom/indicator/signalan outward sign/indication/symbolto give a(n) sign/indication/signal🔑 a piece of equipment that uses different coloured lights to tell drivers to go slower , stop , etc ., used especially on railways /railroads and roads （尤指铁路和公路上的）指示灯，信号灯，红绿灯◆ traffic signals 交通信号灯◆ a stop signal 停车信号🔑 a series of electrical waves that carry sounds , pictures or messages , for example to a radio , television or mobile /cell phone （传输声音、图像或其他信息的电波）信号◆ TV signals 电视信号◆ a high -frequency signal 高频信号◆ a radar signal 雷达信号◆ to detect /pick up signals 探测到/收到信号◆ to emit a signal 发射信号◆ I couldn't get a signal on my cell phone . 我的手机接收不到信号了。🔑 sig·nalBrE /ˈsɪɡnəl/ NAmE /ˈsɪɡnəl/ verb present simple - I / you / we / they signal BrE /ˈsɪɡnəl/ NAmE /ˈsɪɡnəl/ present simple - he / she / it signals BrE /ˈsɪɡnəlz/ NAmE /ˈsɪɡnəlz/ past simple signalled BrE /ˈsɪɡnəld/ NAmE /ˈsɪɡnəld/ past participle signalled BrE /ˈsɪɡnəld/ NAmE /ˈsɪɡnəld/ past simple (US ) signaled BrE /ˈsɪɡnəld/ NAmE /ˈsɪɡnəld/ past participle (US ) signaled BrE /ˈsɪɡnəld/ NAmE /ˈsɪɡnəld/ -ing form signalling BrE /ˈsɪɡnəlɪŋ/ NAmE /ˈsɪɡnəlɪŋ/ -ing form (US ) signaling BrE /ˈsɪɡnəlɪŋ/ NAmE /ˈsɪɡnəlɪŋ/ 🔑 [I , T ]to make a movement or sound to give sb a message , an order , etc .发信号；发暗号；示意◆ Don't fire until I signal . 等我发出信号后再开枪。◆ Did you signal before you turned right ? 右转弯前你示意了吗？◆ ~ (to sb ) (for sth )He signalled to the waiter for the bill . 他示意服务员结账。◆ ~to /for sb to do sth He signalled to us to join him . 他示意要我们去他那儿。◆ ~sb to do sth She signalled him to follow . 她示意他跟她走。◆ ~sth The referee signalled a foul . 裁判鸣哨示意犯规。◆ ~ (that )… She signalled (that ) it was time to leave .她示意该走了。◆ ~which , what , etc .… You must signal which way you are going to turn . 你要朝哪个方向转，必须发出信号。[T ]~sth to be a sign that sth exists or is likely to happen 标志；表明；预示SYN indicate◆ This announcement signalled a clear change of policy . 这个声明显示政策有明显的改变。◆ 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。[T ]to do sth to make your feelings or opinions known 表达；表示；显示◆ ~sth He signalled his discontent by refusing to vote . 他拒绝投票以示不满。◆ ~ (that )… She has signalled (that ) she is willing to stand as a candidate .她表示愿意作为候选人参加竞选。Consonant-doubling verbsbob,club,dub,grab,rub,sob,throbkid,nod,pad,plod,prod,shred,skid,thudbeg,blog,bug,drag,drug,flag,hug,jog,log,mug,nag,plugbar,confer,infer,occur,prefer,refer,star,stir,transferacquit,admit,allot,chat,clot,commit,jut,knit,pat,regret,rot,spot,submit(in British English:) appal,cancel,channel,control,counsel,enrol,equal,excel,fuel,fulfil,label,level,marvel,model,pedal,quarrel,signal,travel🔑 sig·nalBrE /ˈsɪɡnəl/ NAmE /ˈsɪɡnəl/ adjective [only before noun ](formal ) important and noticeable 重大的；显要的◆ a signal honour 极大的荣誉▸ sig·nal·ly BrE /ˈsɪɡnəli/ NAmE /ˈsɪɡnəli/ adverb ◆ They have signally failed to keep their election promises . 他们显然没有履行自己的竞选承诺。 |
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