Use blinds or blackout curtains to keep out light. Switch off or cover anything that emits light, such as an alarm clock.
在睡前灯光越暗越好，最好是一点灯光也没有，用一些黑色的窗帘阻挡灯光，替换所有会吸光的东西，如会发光的钟。
When the dream according to the reality of the time, every morning when the alarm clock, you are up jumped or stand over to cover, is to prove their best answer.
当梦想照进现实的时候，每一天早晨闹钟想起的时候，你是起身一跃还是翻身盖被，才是证明自己的最好 答案。
A mathematical model utilizing inlay method and radiation method was built on the basis of the analysis of cover effect of alarm receiver on alarm system of urban motor vehicles.
根据对市区机动车辆报警系统中报警接收器覆盖效果的分析，应用嵌含法和辐射方法对报警接收器布局建立了数学模型。
When the dream according to the reality of the time, every morning when the alarm clock, you are up jumped or stand over to cover, is to prove their best answer.
当梦想照进现实的时候，每一天早晨闹钟想起的时候，你是起身一跃还是翻身盖被，才是证明自己的最好答案。
Ground squirrels, for example, use alarm signals when a predator is lurking nearby, not only to warn their peers, but also to make it known to the attacker its cover is blown.
例如，地松鼠发现捕食者在附近潜伏时会发出报警，不仅是为了警示它们的伙伴，而且还让攻击者知道自己的隐蔽已是枉然。
Ground squirrels, for example, use alarm signals when a predator is lurking nearby, not only to warn their peers, but also to make it known to the attacker its cover is blown.
例如，地松鼠发现捕食者在附近潜伏时会发出报警，不仅是为了警示它们的伙伴，而且还让攻击者知道自己的隐蔽已是枉然。
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