These are word's definitions related to signal. Click on any word to go to its word's detail page. Or, 更多关于signal的信息
0 an action, movement, or sound that gives information, a message, a warning, or an order
When she gave (them) the signal, they all cheered. 她發出信號後,他們都歡呼起來。
[ + that ] The fireworks were a signal that the festival had started. 煙火是節日開始的信號。
[ + to infinitive ] The police officer gave us the signal to stop. 員警示意我們停下。
The signal for a race to start is often the firing of a gun. 賽跑常以發令槍響作爲開始的信號。
1 a series of electrical or radio waves that are sent to a radio or television in order to produce a sound, picture, or message
2 something that shows that something else exists or is likely to happen
The loss is a clear signal of his deteriorating confidence. 比賽輸了,這清楚地表明他信心日漸不足。
The changing colour of the leaves on the trees is a signal that it will soon be autumn. 樹葉顔色的改變代表秋天即將來臨。
3 equipment, especially on the side of a railway or road, often with lights, that tells drivers to stop, continue, or go more slowly
4 to make a movement, sound, flash, etc. that gives information or tells people what to do
Flashing lights on a parked car usually signal a warning (to other drivers). 停著的車輛上閃爍的車燈通常是警告(其他駕車者)的信號。
He signalled left, and turned the lorry slowly. 他打開左轉方向燈,然後將卡車緩慢轉過去。
He was signalling (= giving a signal) with a red flag. 他正用紅色旗子發信號。
She signalled for help. 她發出了求救信號。
[ + that ] She signalled to the cars behind her that they were going the wrong way. 她示意後面的車輛走錯了路。
[ + obj + to infinitive ] The children's mother signalled them to be quiet. 孩子們的母親示意他們安靜。
[ + to infinitive ] The children's mother signalled to/for them to be quiet. 孩子們的母親向他們示意保持安靜。
6 noticeable and unusual