Signal.c

常见例句

• A red light is usually a signal of danger.
  红灯通常是危险的信号。
• I stood watching for the signal to change to green.
  我站着等待交通信号转为绿灯。
• Let's set the clock by the radio time signal.
  咱们照着收音机的报时信号把钟对一对。
• A red lamp is often a danger signal.
  红灯常常是危险的信号。
• A reflected signal on a communication channel.
  一种在通信信道上反射回来的信号。
• The rise in prices was a signal for rebellion.
  物价上涨引起了叛乱。
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