- 問題詳情:Todaytherearepolicemeneverywhere,butin1700,Londonhadnopolicemenatall.Afewoldmenusedtoprotectthecitystreetsatnightandtheywerenotpaid.About300yearsago,Londonwasstartingtogetbiggerandmoreandmorepeoplebegantolivethere.Thecitywasverydirtyandmanype...
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