Unit 6At one with naturebarrierstructuregrandvalleyplatformthunderchanneloceandesertsailpublishexpertrentsoulbeautylimitedimprovebe located inseparate.from.as well asin doubtreflect ona variety ofcome onto the markethave an effect ongive sb. a helping handbe good forspending their free time gardeningnothing better than spending their Sunday cutting the grassmake thecities greenerpublishedpublishedcame outrepairingwas invitedas well asHis children as well as his wifeNot only his wife but also his childrentolimitedaffectonintointoworkingto understandIt took us half an hour to repair the bicycle.To repair the bicycle took us half an hour.We spent half an hour(in) repairing the bicycle.The car cost him $15，000.He spent $15，000 on the car.He paid $15，000 for the car.Make yourself at hometo understandheard本部分内容讲解结束本部分内容讲解结束按按ESC键退出全屏播放退出全屏播放