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How to keep safe As is known to all , the education of safe recieve a hot attention from the society recently.From my point of view,safe can be devided into 3 different aspects,that is,the safe in school,the safe in traffic and...

Although electricity bring us convenience, it is undeniable that precautions need to be taken when using them. First and foremost, prevent pluging multiple appliances into one outlet as this could cause a fire. Besides, adding ...


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