我一发信号，你就跑！
At an agreed signal they left the room.
收到约定的信号后，他们离开了房间。
A radio signal was sent to the spacecraft.
向宇宙飞船发出了无线电信号。
A signal failure contributed to the crash.
信号灯故障导致了这次撞车事故。
A thin cable carries the signal to a computer.
一条细电缆把信号传给一台计算机。
The signal will be converted into digital code.
信号将被转变成数字编码。
You must signal which way you are going to turn.
你要朝哪个方向转，必须发出信号。
The coded signal is received by satellite dishes.
电码信号通过卫星天线接收。
As soon as it was dark, Mrs. Evans gave the signal.
天一黑，埃文斯夫人就发出了那个信号。
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。
A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
A radio signal has both electrical and magnetic properties.
无线电信号既具有电的特性也具有磁的特性。
I'll say 'One, two, three, go!' as a signal for you to start.
我喊“一、二、三，开始！”作为你开始的信号。
Holly waited at a stoplight, impatient for the signal to change.
霍利在交通信号灯处不耐烦地等着信号改变。
Kurdish leaders saw the visit as an important signal of support.
库尔德领导人把这次访问看作是表示支持的重要信号。
Hunger is the body's signal that levels of blood sugar are too low.
饥饿感是体内发出的血糖浓度太低的信号。
The transmitters will send a signal automatically to a local base station.
发射台会自动将信号发送到地方基站。
When we turned the boat about, the signal began to bleep again constantly.
我们调转船头的时候，信号器又开始发出不停的嘟嘟声。
The recall of Ambassador Alan Green is a public signal of America's concern.
艾伦·格林大使的召回是美国关注此事的公开信号。
The reception was a little faint but clear enough for him to receive the signal.
接收有些弱，但足够清晰到使他能够接收信号。
This act was a signal to his victim's friends that he was someone to be reckoned with.
这一举动是给为他所害者的朋友们的一个信号，告诉他们他是个必须被小心对付的人。
The bomb attack on the capital could signal the start of a pre-election terror campaign.
对首都的炸弹袭击可能标志着选举前的恐怖活动的开始。
The signal changes constantly.
信号不断变化。
那天晚上没有信号。
等我发出信号后再开枪。
This was not the only danger signal.
这不是唯一的危险信号。
A train must not pass a signal that is at danger.
火车切不可越过危险信号。
When the stem dies, its hormone signal also ceases.
当茎死亡时，它的激素信号也停止了。
It's a signal that we might need to protect ourselves.
这是一个信号，表示我们可能需要保护自己。
Peter gave the signal, and the carrion was cast overboard.
彼得发了信号，那具尸体就被抛到船外去了。
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