signal-lens

常见例句

• A red light is usually a signal of danger.
  紅燈通常是危險的信號。
• I stood watching for the signal to change to green.
  我站著等待交通信號轉爲綠燈。
• Let's set the clock by the radio time signal.
  喒們照著收音機的報時信號把鍾對一對。
• A red lamp is often a danger signal.
  紅燈常常是危險的信號。
• A reflected signal on a communication channel.
  一種在通信信道上反射廻來的信號。
• The rise in prices was a signal for rebellion.
  物價上漲引起了叛亂。
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