过马路时低头族们都在看手机，这使得交通事故的发生率大大增加Whencrossingthestreet,bowfamilywhoarelookingatmobilephone,whichmakestheincidenceoftrafficaccidentsisgreatlyincreased过马路时低头族们都在看手机，这使得交通事故的发生率大大增加Whencrossingthestreet,bowfamilywhoarelookingatmobilephone,whichmakestheincidenceoftrafficaccidentsisgreatlyincreased
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