名词 signal:

1. any nonverbal action or gesture that encodes a message

2. any incitement to action

3. an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

signallyadv.显著地；显眼地signaln.信号；标志v.(发信号)通知、表示adj.显著的signal squad通信班, 信号班signal value信号值Signal color标志色signal cover信号覆盖范围signal relay信号继电器signal alarm喇叭signal chain信号链,信号通路signal-boxn.信号所signal limit信号防护区段,信号防护范围signal route信号路由

1. She was signalling wildly, waving her arms.
   她发狂地挥动手臂发信号。