signal
- n.信号;(尤指铁路和公路上的)指示灯，信号灯，红绿灯;标志;预示;暗号
- v.显示;表示;表明;标志;表达;发信号;示意;预示;发暗号
- adj.重大的;显要的
复数： signals 派生词： signally adv. 过去式： signalled 现在分词： signalling 过去分词： signalled 第三人称单数： signals
sign 标记 + -al ...的
signalnoun
信号；暗号
a movement or sound that you make to give sb information, instructions, a warning, etc.
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！
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
标志；预示；信号
an event, an action, a fact, etc. that shows that sth exists or is likely to happen
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报警信号。
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。
（尤指铁路和公路上的）指示灯，信号灯，红绿灯
a piece of equipment that uses different coloured lights to tell drivers to go slower, stop, etc., used especially on railways/railroads and roads
traffic signals
交通信号灯
a stop signal
停车信号
（传输声音、图像或其他信息的电波）信号
a series of electrical waves that carry sounds, pictures or messages, for example to a radio or television
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 / 收到信号
to emit a signal
发射信号
verb
发信号；发暗号；示意
to make a movement or sound to give sb a message, an order, etc.
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？
He signalled to the waiter for the bill.
他示意服务员结账。
The referee signalled a foul.
裁判鸣哨示意犯规。
She signalled (that) it was time to leave.
她示意该走了。
He signalled to us to join him.
他示意要我们去他那儿。
She signalled him to follow.
她示意他跟她走。
You must signal which way you are going to turn.
你要朝哪个方向转，必须发出信号。
标志；表明；预示
to be a sign that sth exists or is likely to happen
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。
表达；表示；显示
to do sth to make your feelings or opinions known
He signalled his discontent by refusing to vote.
他拒绝投票以示不满。
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。
These 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。
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。
( rather formal ) 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。
An indication often comes in the form of sth that sb says, while a sign is usually sth that happens or sth that sb does. |
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。
a person, object or event that represents a more general quality or situation指象征：
The dove is a universal symbol of peace.
鸽子是和平的共同象征。
( rather formal ) 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
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。
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
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2
N-COUNT (以手势、声音、行动等发出的)信号，暗号
A signal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it.They fired three distress signals...
他们发射了3次求救信号。
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3
VERB (用手势、声音等)发信号，发暗号，示意
If you signal to someone, you make a gesture or sound in order to send them a particular message.The United manager was to be seen frantically signalling to McClair...
一会儿可以看到曼联主教练拼命地朝麦克莱尔示意。
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4
N-COUNT 迹象;信号;预示
If an event or action is a signal of something, it suggests that this thing exists or is going to happen.Kurdish leaders saw the visit as an important signal of support...
库尔德领导人将这次访问视作一种表示支持的重要信号。
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5
VERB 预示;表明;显示
If someone or something signals an event, they suggest that the event is happening or likely to happen.She will be signalling massive changes in energy policy...
她将暗示能源政策会有重大变化。
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6
N-COUNT (铁路上的)指示灯，信号灯
A signal is a piece of equipment beside a railway, which indicates to train drivers whether they should stop the train or not. -
7
N-COUNT (传输信息的无线电、光波或电流)信号
A signal is a series of radio waves, light waves, or changes in electrical current which may carry information....high-frequency radio signals.
高频无线电信号
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8
ADJ 重大的;显要的;非凡的
You use signal to describe a success or failure when you are emphasizing the fact that it has occurred and are indicating that the consequences are significant.His final round was a signal triumph in a career marked by many sweet moments.
最后一场比赛的胜利在他充满欣喜的职业生涯中具有非凡的意义。
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...a demoralised party which its leader signally failed to reassure.
该政党士气低落，而其领袖丝毫未能安定人心
noun
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1
- any nonverbal action or gesture that encodes a message
- signals from the boat suddenly stopped
- Synonym: signaling sign
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2
- any incitement to action
- he awaited the signal to start
- the victory was a signal for wild celebration
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3
- an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
verb
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1
- be a signal for or a symptom of
- These symptoms indicate a serious illness
- Her behavior points to a severe neurosis
- The economic indicators signal that the euro is undervalued
- Synonym: bespeak betoken indicate point
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2
- communicate silently and non-verbally by signals or signs
- He signed his disapproval with a dismissive hand gesture
- The diner signaled the waiters to bring the menu
- Synonym: sign signalize signalise
adj
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1
- notably out of the ordinary
- the year saw one signal triumph for the Labour party
数据来源：WordNet
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You must signal which way you are going to turn .
你要朝哪个方向转，必须发出信号。
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A sensor channels the light signal along an optical fibre .
传感器沿光导纤维输送光信号。
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When I give the signal , run !
我一发信号，你就跑！
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Did you signal before you turned right ?
右转弯前你示意了吗？
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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。
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At an agreed signal they left the room .
收到约定的信号后，他们离开了房间。
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Don 't fire until I signal .
等我发出信号后再开枪。
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All I get is a busy signal when I dial his number .
我什么时候拨他的电话听到的都是忙音。
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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。
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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。
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A radio signal was sent to the spacecraft .
向宇宙飞船发出了无线电信号。
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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。
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This announcement signalled a clear change of policy .
这个声明显示政策有明显的改变。
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She signalled it was time to leave .
她示意该走了。
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A police car drew abreast of us and signalled us to stop .
一辆警车开过来与我们并排，示意我们停下来。
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She signalled her return to form with a convincing victory .
她令人信服的胜利显示她已恢复状态。
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She has signalled she is willing to stand as a candidate .
她表示愿意作为候选人参加竞选。
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She signalled and pulled over into the slow lane .
她给信号后把车开进了慢车道。
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He signalled to the waiter for the bill .
他示意服务员结账。
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A fanfare signalled the entrance of the king .
响亮的喇叭声是国王驾到的信号。
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She signalled him to follow .
她示意他跟她走。
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The referee signalled a foul .
裁判鸣哨示意犯规。
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This signals a rapid change of mind by the government .
这标志着政府思想的急剧转变。
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A radio signal has both electrical and magnetic properties .
无线电信号具有电、磁双重属性。
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I feel this signals the degradation of American culture .
我觉得这标志了美国文化的没落。
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You mustn 't fire without my signal .
没我的信号不许开枪。
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The signal will be converted into digital code .
信号会被转变为数字代码。
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Kurdish leaders saw the visit as an important signal of support
库尔德领导人将这次访问视作一种表示支持的重要信号。
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A thin cable carries the signal to a computer
一根细电缆将信号传送给一台计算机。
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Hunger is the body 's signal that levels of blood sugar are too low
饥饿感是身体发出的信号，表示血糖水平太低。
- 词语搭配