Signal lights on cars have edged out hand signals.

汽车上已逐渐以信号灯显示取代以手示意的作法.

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They used fake signal lights to bait the enemy ships onto the rocks.

他们用假信号灯诱使敌船触礁.

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Keep headlights clean and working . Do the same for taillights and signal lights.

保持前灯,尾灯和信号灯清洁和工作.

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