急.帮我翻译一下这篇英语阅读ThesandstormthathitBeijingthisweek,dumping300,000tonsofdustandsandontheChinesecapital,reportedlywasthemostseverinatleastfiveyears.DustwasblownasfarawayasSouthKoreaandTokyo.

　　急.帮我翻译一下这篇英语阅读

　　ThesandstormthathitBeijingthisweek,dumping300,000tons

　　ofdustandsandontheChinesecapital,reportedlywasthemostseverinatleastfiveyears.DustwasblownasfarawayasSouthKoreaandTokyo.

　　Thisspring’ssandstormwereunusuallybadduetoverydryconditionsafterrainfalloverthepastyear,saidLiuHeandYangsaidtheChinesecapitalhasbeenhitbu10duststormssinceFebruary.

　　Beijinghasapprovedprogramstoreclaimlandbyplaninghardygrassesandshrubson30percentofChina's700,000squaremilesofdesert,Liusaid.

　　Buthesaidthatwasn'tduetobecompleteduntil2050andgiventhemillionsofsquaremilesofdesertinCina,"Theywillcontinuetobeasourceofsandstorms."

　　Thegovernmentalsohasplanted"greenbelts"oftreestoshieldBeijingandtheneighboringportcityTianjinfromdustandsandsweepingdownfromthenorthwest.

　　Liuexpressedconfidencethatsandstormswouldnotdisruptthe2008BeijingOlymoics-akeyprestigeprojectforcommunistleaders.Theyhavepromisedanenvironmentallysound"greenOlympocs."

　　LiunotedthatBeijing'ssandandduststormsusuallyareconfinedtoMarch,AprilandMay,whiletheOlympicsisplannedforAugust.

　　"Eveniftherearesandstormin2008,"hesaid,"wehavereasonstobeconfidentthatthesituationwillnotbeassevereasitisnow,becausewewillbemakingeffortsandexpecttoachieveresults."

　　第六行的第六个单词是by