#VOA慢速听力(023) 搜索结果
Greatchangeshavetakenplaceinfamilylifebecauseofscienceandindustry.Inthepast,whenmoreAmericanslivedonfarms,thetypicalfamilyhadmanychildren.Inafarmfamily,parentsandtheirchildrenoftenlivedwithgrandparents.Oftento
