- 問題詳情:ItwasaveryfoggydayinLondon.Thefogwassothickthatitwasimpossibletoseemorethanafootorso.Buses,carsandtaxiswerenotabletorunandwerestandingbythesideoftheroad.Peopleweretryingtofindtheirwayaboutonfootbutwerelosingtheirwayinthefog.MrSmithhadaveryimp...
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