however放主句和从句之间,被逗号隔开,到底修饰的是主句呢,还是从句呢?AnarrestmadebyaMidvillepoliceofficerisprovisionaluntiltheofficerhastakenthesuspecttothepolicestationandthewatchcommanderhasofficiall

　　however放主句和从句之间,被逗号隔开,到底修饰的是主句呢,还是从句呢?

　　AnarrestmadebyaMidvillepoliceofficerisprovisionaluntiltheofficerhastakenthesuspecttothepolicestationandthewatchcommanderhasofficiallyapprovedthearrest.Suchapprovalisdeniedifthecommanderjudgesthattheevidenceonwhichtheprovisionalarrestisbasedisinsufficient.Agovernmentefficiencyexperthasobservedthatalmostallprovisionalarrestsmeetthestandardsforadequacyofevidencethatthewatchcommandersenforce.Theexperthasthereforerecommendedthatbecausetheofficers’timespentobtainingapprovalislargelywasted,thewatchcommander’sapprovalnolongerberequired.Thisrecommendationshouldberejectedasdangerous,however,sincethereisnoassurancethatthewatchcommanders’standardswillcontinuetobeobservedonceapprovalislongerrequired.

　　最后一句话,Thisrecommendationshouldbe...,however,我认为修饰的应该是前一句话.但这样一放会不会,就搞不清他到底是在哪转折.中文直译的话,我会认为他是在说：‘’但是,since.required.