为确保您的烟雾探测器的安全运行，请执行以下操作：如果烟雾探测器正常工作，则红灯常亮。
Do the following to ensure the safe operation of your smoke detector: if your smoke detector is working properly, the red light should be on.
当您自驾时，为安全起见您会扣上安全带；如果您是家长的话，您同样需要确保您的孩子系好安全带。
When you get in your car, you buckle up for safety, and if you're a parent, you make sure your children are buckled up, as well.
为确保您和他人的安全，搭乘地铁时严禁携带危险品。
To ensure your safety and other passengers' security, bringing of dangerous article is prohibited.
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