signal
美音:[´sıgnəl
]
英音:[´sıgnəl
]
n.信号 adj.信号的 v.发信号,用信号通知
难易程度:
signal为高中词汇
词频:4132
词形变化:
名词:signaler 动词过去式:signaled/signalled 过去分词:signaled/signalled 现在分词:signaling/signalling 第三人称单数:signals/signals
词根
sign＝to mark（加上记号）
近义词, 同义词
signal
/'sɪgnəl; `sɪˇnl/
n
1 sign, gesture, sound, etc that conveys a message, command, etc （传递信息、命令等的）信号, 手势, 声音, 暗号
*a signal made with a red flag 用红旗打出的信号
* hand signals, ie made by the driver of a car, etc to show which way it will turn, etc 手势信号（司机指示转弯等的）
* She flashed the torch as a signal. 她用手电筒发信号.
* He raised his arm as a signal for us to stop. 他抬起手臂示意我们停下.
* A red light is usually a signal for/of danger. 红灯通常是危险的信号.
2 any device or object placed to give people a warning, information, etc （给人警告、信息等的）信号器或信号物
*traffic signals, ie for cars, etc in the streets 交通信号
* The railway signal (ie light) was on red, so the train stopped. 铁路红灯亮了, 所以火车停下了.
3 (a) any event or action that causes some general activity 触发某些普遍活动的事情或行动
*The President's arrival was the signal for an outburst of cheering. 总统来到爆发一阵欢呼声.
(b) anything indicating that sth exists or is likely to happen 表明某事物存在或可能发生的任何事物
*Her speech yesterday was a signal that her views have changed. 她昨天的讲话标志着她的观点已经转变.
* Is this announcement the signal of better times ahead? 宣布的这件事是否预示往後日子越过越好了?
4 sequence of electronic impulses or radio waves transmitted or received （电子脉冲或无线电波的）信号
*receive a signal from a satellite 接收到卫星信号
* an area with a poor/good TV signal 电视信号弱[强]的地区
* [attrib 作定语] signal strength 信号强度.
v (-ll-; US -l-) [I, Ipr, Tn, Tn.pr, Tf, Tw, Dn.pr, Dn.f, Dpr.f, Dn.w, Dpr.w, Dn.t, Dpr.t no passive 不用于被动语态] ~ (to sb/sth) (for sth) make a signal or signals; send or express (sth) in this way; communicate with (sb) in this way 发信号; 用信号传达（某信息）; 用信号与（某人）通讯
*He seems to be signalling. 他似乎正在发送信号.
* signal wildly with one's arms 奋力挥臂打信号
* signal a message (to sb) 用信号（向某人）传递消息
* (fig 比喻) signal one's discontent by refusing to vote 拒绝投票以示不满
* (fig 比喻) an event signalling a change in public opinion 说明公众舆论变化的事件
* signal that one is going to turn/which way one is going to turn 打信号示意要转弯[走哪条路]
* signal (to) the commanding officer (that...) 向指挥官发信号（报告...）
* signal to the regiment for the attack to begin 向团部发出开始进攻的信号
* signal (to) sb which way to go 示意某人走哪条路
* signal (to) the waiter to bring the menu 示意要服务员把菜单拿来.
/'sɪgnəl; `sɪˇnl/
adj [attrib 作定语] remarkably good or bad; outstanding （好或坏）显着的; 出色的
*a signal victory, success, failure, etc 极大的胜利、成功、失败等.
n
1 sign, gesture, sound, etc that conveys a message, command, etc （传递信息、命令等的）信号, 手势, 声音, 暗号
*a signal made with a red flag 用红旗打出的信号
* hand signals, ie made by the driver of a car, etc to show which way it will turn, etc 手势信号（司机指示转弯等的）
* She flashed the torch as a signal. 她用手电筒发信号.
* He raised his arm as a signal for us to stop. 他抬起手臂示意我们停下.
* A red light is usually a signal for/of danger. 红灯通常是危险的信号.
2 any device or object placed to give people a warning, information, etc （给人警告、信息等的）信号器或信号物
*traffic signals, ie for cars, etc in the streets 交通信号
* The railway signal (ie light) was on red, so the train stopped. 铁路红灯亮了, 所以火车停下了.
3 (a) any event or action that causes some general activity 触发某些普遍活动的事情或行动
*The President's arrival was the signal for an outburst of cheering. 总统来到爆发一阵欢呼声.
(b) anything indicating that sth exists or is likely to happen 表明某事物存在或可能发生的任何事物
*Her speech yesterday was a signal that her views have changed. 她昨天的讲话标志着她的观点已经转变.
* Is this announcement the signal of better times ahead? 宣布的这件事是否预示往後日子越过越好了?
4 sequence of electronic impulses or radio waves transmitted or received （电子脉冲或无线电波的）信号
*receive a signal from a satellite 接收到卫星信号
* an area with a poor/good TV signal 电视信号弱[强]的地区
* [attrib 作定语] signal strength 信号强度.
v (-ll-; US -l-) [I, Ipr, Tn, Tn.pr, Tf, Tw, Dn.pr, Dn.f, Dpr.f, Dn.w, Dpr.w, Dn.t, Dpr.t no passive 不用于被动语态] ~ (to sb/sth) (for sth) make a signal or signals; send or express (sth) in this way; communicate with (sb) in this way 发信号; 用信号传达（某信息）; 用信号与（某人）通讯
*He seems to be signalling. 他似乎正在发送信号.
* signal wildly with one's arms 奋力挥臂打信号
* signal a message (to sb) 用信号（向某人）传递消息
* (fig 比喻) signal one's discontent by refusing to vote 拒绝投票以示不满
* (fig 比喻) an event signalling a change in public opinion 说明公众舆论变化的事件
* signal that one is going to turn/which way one is going to turn 打信号示意要转弯[走哪条路]
* signal (to) the commanding officer (that...) 向指挥官发信号（报告...）
* signal to the regiment for the attack to begin 向团部发出开始进攻的信号
* signal (to) sb which way to go 示意某人走哪条路
* signal (to) the waiter to bring the menu 示意要服务员把菜单拿来.
/'sɪgnəl; `sɪˇnl/
adj [attrib 作定语] remarkably good or bad; outstanding （好或坏）显着的; 出色的
*a signal victory, success, failure, etc 极大的胜利、成功、失败等.
signal
A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day.
1. Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天清晨，她听到头上有飞机飞过，却不知道怎样才能发出信号，
2. Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天一大早，她听到头顶上有飞机飞过，但不知道怎样才能发个信号。
3. But we are the ones who signal to businesses that what they are doing is okay — every time we buy their products.
每当我们购买他们的产品时，我们就在向企业发出信号，告诉他们可以这样做。
4. Was it the signal?
这是那信号吗?
5. The soldiers lay in ambush, waiting for the signal to open fire.
士兵布下伏兵，等待开火的信号。
6. Don't be alarmed by the bells ringing in Singaporean taxis, which are simply a signal warning drivers they have exceeded the speed limit.
坐在新加坡的出租车里，不要被铃声吓着，那只是个信号，警告司机车已经超过限制速度了。
7. Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。
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第二天清晨，她听到头上有飞机飞过，却不知道怎样才能发出信号，
2. Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天一大早，她听到头顶上有飞机飞过，但不知道怎样才能发个信号。
3. But we are the ones who signal to businesses that what they are doing is okay — every time we buy their products.
每当我们购买他们的产品时，我们就在向企业发出信号，告诉他们可以这样做。
4. Was it the signal?
这是那信号吗?
5. The soldiers lay in ambush, waiting for the signal to open fire.
士兵布下伏兵，等待开火的信号。
6. Don't be alarmed by the bells ringing in Singaporean taxis, which are simply a signal warning drivers they have exceeded the speed limit.
坐在新加坡的出租车里，不要被铃声吓着，那只是个信号，警告司机车已经超过限制速度了。
7. Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。
更多句子>>>
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