noun [专属名词] 信号，暗号；标志，预示；（尤指铁路和公路上的）指示灯，信号灯；（无线电、电视等的）讯号，信号；起因，导火线；（桥牌）信号；（传递的）信息
They fired three distress signals. 他们发射了3次遇难求救信号。
verb [vt. 及物动词] 发信号，示意；标志，预示；告知，表示；（车辆转方向时）打灯示意
He seemed to be signalling important shifts in U.S. government policy. 他似乎在表示美国政府的政策将会有些重大变化。
adjective [原级] 重大的，显要的；作为信号的
A radio signal was sent to the spacecraft. 向宇宙飞船发出了无线电信号。
- signal 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 75 SOS signal 名词: 信号
来自sign(n. 标记)
- 网友用 “Signal” 造句精选
- At an agreed signal they left the room. 收到约定的信号后，他们离开了房间。
- Mandy started after him, signalling to Jesse to follow. 曼迪开始追赶他，示意杰西跟上。
- A signal failure contributed to the crash. 信号灯故障导致了这次撞车事故。
- When I give the signal , run! 我一发信号，你就跑！
- She signalled to Ted that she was moving forward. 她向特德示意她要向前走。
- ...high-frequency radio signals. …高频无线电信号。
- 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。
- 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。