signal

中文意思

n. any nonverbal action or gesture that encodes a message
n. any incitement to action
n. an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
adj. notably out of the ordinary

n. 信号
The mobile phone has a very weak signal inside the elevator.
这台手机在电梯里的信号非常弱。
n. 暗号
Coughing twice was our secret signal to leave the room immediately.
咳嗽两声是我们立即离开房间的秘密暗号。
n. 导火线
The sudden increase in fuel prices served as the signal for nationwide protests.
燃料价格的突然上涨成了引发全国性抗议的导火线。
v. 发信号
The driver signaled with his hand to show that he was turning left.
司机用手臂发信号，表明他要向左转。
v. 标志
The opening of the new bridge signals the start of a new economic era for the town.
这座新大桥的通车标志着该小镇迈入了一个新的经济时代。
adj. 显著的
Winning the international award was a signal achievement in her medical career.
获得这项国际奖项是她医学生涯中一项显著的成就。