signal
🇺🇸
/ˈsɪɡnəl/
🇬🇧
/ˈsɪɡnəl/
noun
B1
A gesture or sound made to communicate information or instructions.
The coach gave a signal for the team to start the play.
教练发出了一个信号，让团队开始比赛。
B1
A device using lights to control traffic, especially on roads and railways.
The train came to a halt due to a signal failure.
由于信号故障，火车停了下来。
B2
An electromagnetic wave that conveys sounds, images, or messages to a receiver.
The radio picked up a weak signal from the distant station.
收音机从远处的电台接收到了一个微弱的信号。
B2
An indication or hint that suggests the existence or likelihood of something.
The smoke was a signal that there was a fire nearby.
烟雾是一个信号，表明附近有火灾。
verb
B1
To communicate information or instructions using a gesture or sound.
The guard signaled to us that the gate was open.
警卫向我们示意大门是开着的。
R
To indicate a change in direction of a vehicle by using lights or hand signals.
You must signal before you change lanes on the highway.
在高速公路上变道前必须打信号。
R
To be a sign or indication of something.
The decline in sales signals a problem with the product.
销售额下降表明产品存在问题。
R
To express one's feelings or intentions in a subtle way.
She signaled her approval by nodding her head.
她通过点头示意表示同意。
adjective
R
Having a significant meaning or impact.
The election results were a signal victory for the party.
选举结果对党来说是一个明显的胜利。
translation
信号, 信号灯
发信号, 打转向灯, 预示, 暗示
重要的
词形变化
3rd Present
signals
Past
signaled
Perfect
signaled
Progressive
signaling
Plural
signals