-makeanunnecessarymove;bringsth.ofwhichthereisplenty;burndaylight;carry[send]coalstoNewcastle;fanthebreezes;knockatanopendoor;takeasuperfluousaction;Theaction[measure;step]justtakenwasreallyunnecessary.;waterone'sgrassafteragoodrain:
Whytakethetroubletodothat?何必多此一举?