出处:按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第255页(239字)
指只有口说,不足为据,例这笔生意虽已经双方同意,但口说无凭,一定要订立书面契约,才能保障彼此的权益。
Though this business has been verbally agreed to on both sides,a written con tract has to be signed to protect the rights of both parties.