The rise in inflation is a clear signal that the government's policies are not working.

He signalled to the waiter for the bill.

他示意服务员结账。

Britain was signalling its readiness to have the embargo lifted...

英国表示愿意取消贸易禁令。

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

a stop signal

停车信号

...John Major's signal failure to grab America's attention.

约翰·梅杰显然没有能够引起美国的注意

...high-frequency radio signals.

高频无线电信号

He stood up, signalling to the officer that he had finished with his client...

他站起身，向警察示意他和他的当事人已经谈完了。

Don't fire until I signal.

等我发出信号后再开枪。

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。

a danger/warning/distress etc. signal

危险、警告、求救等信号

to detect/pick up signals

探测 / 收到信号

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。

As soon as it was dark, Mrs Evans gave the signal...

天一黑，埃文斯夫人就发出了信号。

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。

to emit a signal

发射信号

traffic signals

交通信号灯

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。

She will be signalling massive changes in energy policy...

她将暗示能源政策会有重大变化。

a high frequency signal

高频信号

The first warning signals came in March...

第一次警示出现在3月份。