-（比喻做多余的事，反而不恰当）paintasnakewithfeet--superfluous;addlegstoone'ssketchofaserpent;(Theadditionaldiscourseson...)arecompletelysuperfluous.;carry[send]coalstoNewcastle;dangeroussuperfluity;drawasnakeandaddfeettoit--tospoilthingsbygoingtoextremes;drawasnakewithfeetaddedtoit--redundant;fanthebreezes;gild[paint]thelily;Tooverreachthemarkisjustasbadasnotreachingit.;ruintheeffectbyaddingwhatissuperfluous;Theaction[measure;step]justtakenwasreallyunnecessary.