- 問題詳情:HouseSittingInmanycountriesoftheworldpeopledowhatiscalledhousesitting.Itmeansthatifownersofthehousearegoingaway,theywantsomeonetocomeintotheirhomeandlookafterthehouseandmaybepetswhiletheyareaway.InAustralia,manypeopletravel.Afterpeopleretire,...
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