signal 的英语意思
signalsignal1 /ˈsɪɡnəl/ noun [countable] 
查看全部语言翻译1a sound or an action that you make in order to give information to someone or tell them to do something为向某人传递信息或指示其做某事而发出的声响或做出的动作signal (for somebody) to do something
When she got up from the table, it was obviously the signal for us to leave.她从桌边起身时，这显然是我们该离开的信号。 At a prearranged signal the lights went out.在事先约定的信号发出后，灯熄灭了。 → smoke signal
► see thesaurus at sign2an event or action that shows what someone feels, what exists, or what is likely to happen表明某人的感受、某事物的存在或某事可能发生的事件或行为signal (that) These results are a signal that the child may need special help.这些结果表明，该孩子可能需要特殊帮助。signal of The opinion poll is a clear signal of people’s dissatisfaction with the government.这次民意调查清楚地表明了民众对政府的不满。 the danger signals of a heart attack心脏病发作的危险信号send/give out a signal We don't want to give out the wrong signal to investors.我们不想向投资者发出错误的信号。3a series of light waves, sound waves etc that carry an image, sound, or message, for example in radio or television携带图像、声音或信息的一系列光波、声波等，例如无线电或电视信号send/transmit a signal This new pay-TV channel sends signals via satellite to cable companies.这个新的付费电视频道通过卫星向有线电视公司发送信号。receive/pick up/detect a signal a small antenna which can receive radio signals能接收无线电信号的小型天线 The coastguard picked up a distress signal from a freighter 50 miles out at sea.海岸警卫队接收到一艘距海岸50英里的货轮发出的遇难信号。4a piece of equipment with coloured lights, used on a railway to tell train drivers whether they can continue or must stop铁路上用于告知列车司机是否可以继续行驶或必须停车的彩色灯光设备: a stop signal停车信号 a signal failure (=when these lights do not work)信号故障（即灯光不运作时） → busy signal at busy1(4)COLLOCATIONS词语搭配– Meaning 2— 释义 2ADJECTIVES/NOUN + signal形容词／名词 + signala clear/strong signal· My body was giving me a clear signal that something was wrong.· 我的身体在向我发出明确的信号，说明出了问题。a warning/danger/alarm signal (=a signal showing that there is danger)· Managers should keep a watchful eye open for the danger signals.· 管理人员应时刻警惕危险信号。the wrong signals (=ones that do not give a true account of a situation)· Reducing the penalty for marijuana use perhaps sends the wrong signal to teenagers.· 减轻大麻使用的处罚可能向青少年传递错误的信号。mixed signals (=ones that are confusing because they seem to show two different things)· Our culture gives girls mixed messages about food, with skinny models and fast-food commercials competing for attention.· 我们的文化向女孩们传递了关于食物的矛盾信息，消瘦模特与快餐广告争相吸引眼球。verbs动词send/give out a signal· The use of the army sends out a clear signal to protesters that their actions will not be tolerated.· 动用军队向抗议者发出明确信号，表明他们的行为不会被容忍。read the signals (=to understand signals correctly)· President Nixon read the signals and decided it was time to resign.· 尼克松总统看清了这些信号，决定是时候辞职了。COLLOCATIONS词语搭配– Meaning 3— 释义 3verbs动词send (out)/transmit a signal· The signals are transmitted via satellites.· 信号通过卫星传输。emit a signal (=sends one out)· The device emits a signal which can be picked up by a submarine.· 该装置发出的信号可被潜艇接收。receive/pick up a signal· The antenna that will pick up the signals is a 12-metre dish.· 用于接收信号的天线是一个12米的碟形天线。carry a signal (=allow it to travel along or through something)· Copper wires carry the electrical signals.· 铜线传输电信号。a signal travels (=goes across space, along a wire etc)· The signal travels over the cable network.· 信号通过有线网络传输。ADJECTIVES/NOUN + signal形容词／名词 + signalstrong· I can’t use my phone because the signal isn’t strong enough here.· 我无法使用手机，因为这里信号不够强。weak/faint· The signals were too weak for the receiver to pick up.· 信号太弱，接收器无法接收。a radio/electrical/radar signal· A transmitter connected to the door bell sends radio signals to a portable receiver.· 与门铃相连的发射器向便携式接收器发送无线电信号。a digital signal· Digital signals can be compressed to take up less space.· 数字信号可以压缩以占用更少的空间。
查看全部语言翻译1a sound or an action that you make in order to give information to someone or tell them to do something为向某人传递信息或指示其做某事而发出的声响或做出的动作signal (for somebody) to do something When she got up from the table, it was obviously the signal for us to leave.她从桌边起身时，这显然是我们该离开的信号。 At a prearranged signal the lights went out.在事先约定的信号发出后，灯熄灭了。 → smoke signal► see thesaurus at sign2an event or action that shows what someone feels, what exists, or what is likely to happen表明某人的感受、某事物的存在或某事可能发生的事件或行为signal (that)
These results are a signal that the child may need special help.这些结果表明，该孩子可能需要特殊帮助。signal of The opinion poll is a clear signal of people’s dissatisfaction with the government.这次民意调查清楚地表明了民众对政府的不满。 the danger signals of a heart attack心脏病发作的危险信号send/give out a signal We don't want to give out the wrong signal to investors.我们不想向投资者发出错误的信号。3a series of light waves, sound waves etc that carry an image, sound, or message, for example in radio or television携带图像、声音或信息的一系列光波、声波等，例如无线电或电视信号send/transmit a signal This new pay-TV channel sends signals via satellite to cable companies.这个新的付费电视频道通过卫星向有线电视公司发送信号。receive/pick up/detect a signal a small antenna which can receive radio signals能接收无线电信号的小型天线 The coastguard picked up a distress signal from a freighter 50 miles out at sea.海岸警卫队接收到一艘距海岸50英里的货轮发出的遇难信号。4a piece of equipment with coloured lights, used on a railway to tell train drivers whether they can continue or must stop铁路上用于告知列车司机是否可以继续行驶或必须停车的彩色灯光设备: a stop signal停车信号 a signal failure (=when these lights do not work)信号故障（即灯光不运作时） → busy signal at busy1(4)COLLOCATIONS词语搭配– Meaning 2— 释义 2ADJECTIVES/NOUN + signal形容词／名词 + signala clear/strong signal· My body was giving me a clear signal that something was wrong.· 我的身体在向我发出明确的信号，说明出了问题。a warning/danger/alarm signal (=a signal showing that there is danger)· Managers should keep a watchful eye open for the danger signals.· 管理人员应时刻警惕危险信号。the wrong signals (=ones that do not give a true account of a situation)· Reducing the penalty for marijuana use perhaps sends the wrong signal to teenagers.· 减轻大麻使用的处罚可能向青少年传递错误的信号。mixed signals (=ones that are confusing because they seem to show two different things)· Our culture gives girls mixed messages about food, with skinny models and fast-food commercials competing for attention.· 我们的文化向女孩们传递了关于食物的矛盾信息，消瘦模特与快餐广告争相吸引眼球。verbs动词send/give out a signal· The use of the army sends out a clear signal to protesters that their actions will not be tolerated.· 动用军队向抗议者发出明确信号，表明他们的行为不会被容忍。read the signals (=to understand signals correctly)· President Nixon read the signals and decided it was time to resign.· 尼克松总统看清了这些信号，决定是时候辞职了。COLLOCATIONS词语搭配– Meaning 3— 释义 3verbs动词send (out)/transmit a signal· The signals are transmitted via satellites.· 信号通过卫星传输。emit a signal (=sends one out)· The device emits a signal which can be picked up by a submarine.· 该装置发出的信号可被潜艇接收。receive/pick up a signal· The antenna that will pick up the signals is a 12-metre dish.· 用于接收信号的天线是一个12米的碟形天线。carry a signal (=allow it to travel along or through something)· Copper wires carry the electrical signals.· 铜线传输电信号。a signal travels (=goes across space, along a wire etc)· The signal travels over the cable network.· 信号通过有线网络传输。ADJECTIVES/NOUN + signal形容词／名词 + signalstrong· I can’t use my phone because the signal isn’t strong enough here.· 我无法使用手机，因为这里信号不够强。weak/faint· The signals were too weak for the receiver to pick up.· 信号太弱，接收器无法接收。a radio/electrical/radar signal· A transmitter connected to the door bell sends radio signals to a portable receiver.· 与门铃相连的发射器向便携式接收器发送无线电信号。a digital signal· Digital signals can be compressed to take up less space.· 数字信号可以压缩以占用更少的空间。signalsignal2 verb (past tense and past participle signalled, present participle signalling British English, signaled, signaling American English) 1[intransitive, transitive] to make a sound or an action in order to give information or tell someone to do something发出声响或做出动作以传递信息或指示某人做某事: She signalled, and the waiter brought the bill.她打了个手势，服务员便把账单拿来了。 The whistle signalled the end of the match.哨声宣告了比赛结束。signal at Mary signalled wildly at them, but they didn’t notice.玛丽疯狂地向他们打手势，但他们没有注意到。signal to The judge signaled to a police officer and the man was led away.法官向一名警察示意，那名男子随即被带走。signal for He pushed his plate away and signalled for coffee.他把盘子推开，示意要咖啡。signal (to) somebody to do something She signalled to the children to come inside.她向孩子们示意进来。signal that The bell signaled that school was over.铃声宣告学校放学了。2[transitive] to make something clear by what you say or do – used in news reports通过言行表明某事——用于新闻报道: Both sides have signaled their willingness to start negotiations.双方都表明了开始谈判的意愿。 British sources last night signalled their readiness to talk.英国消息人士昨晚表示愿意进行对话。signal (that) The prime minister’s speech today signals that there will be a shakeup in the cabinet.首相今天的讲话预示着内阁将进行改组。3[transitive] to be a sign that something is going to happen预示某事即将发生signal the start/beginning/end of something the lengthening days that signal the end of winter预示冬天结束的日照渐长4[intransitive] to show the direction you intend to turn in a vehicle, using the lights驾驶车辆时使用灯光显示意图转向的方向 SYN indicate American English: Signal before you pull out.驶出之前先打转向灯。
1[intransitive, transitive] to make a sound or an action in order to give information or tell someone to do something发出声响或做出动作以传递信息或指示某人做某事: She signalled, and the waiter brought the bill.她打了个手势，服务员便把账单拿来了。 The whistle signalled the end of the match.哨声宣告了比赛结束。signal at Mary signalled wildly at them, but they didn’t notice.玛丽疯狂地向他们打手势，但他们没有注意到。signal to The judge signaled to a police officer and the man was led away.法官向一名警察示意，那名男子随即被带走。signal for He pushed his plate away and signalled for coffee.他把盘子推开，示意要咖啡。signal (to) somebody to do something She signalled to the children to come inside.她向孩子们示意进来。signal that The bell signaled that school was over.铃声宣告学校放学了。2[transitive] to make something clear by what you say or do – used in news reports通过言行表明某事——用于新闻报道: Both sides have signaled their willingness to start negotiations.双方都表明了开始谈判的意愿。 British sources last night signalled their readiness to talk.英国消息人士昨晚表示愿意进行对话。signal (that) The prime minister’s speech today signals that there will be a shakeup in the cabinet.首相今天的讲话预示着内阁将进行改组。3[transitive] to be a sign that something is going to happen预示某事即将发生signal the start/beginning/end of something the lengthening days that signal the end of winter预示冬天结束的日照渐长4[intransitive] to show the direction you intend to turn in a vehicle, using the lights驾驶车辆时使用灯光显示意图转向的方向 SYN indicate American English: Signal before you pull out.驶出之前先打转向灯。