ResearchbyScotlandYardpublishedinaLondonnewspaper,haspr...
问题详情：ResearchbyScotlandYardpublishedinaLondonnewspaper,hasproventhatknifecrimeinLondonisaseriousnon–whitephenomenon,with165ofthe225under-18saccusedofknifecrimeinthepastthreemonthsbeingfromtheblack...