答案：多此一舉；白費手續(xù)；多一番事；多一道手續(xù)；多一番手續(xù)；多余一禮；多余一道手續(xù)；多費一道手續(xù)；白費二遍事；自找麻煩；多找麻煩；多費事；多余；費兩道手腳；格外的過場；爽利；自找費事；白費二道手；費兩道手；找著費事；多余其事