单选题 原文: It is no use telling grown-up children not to make mistakes, both because they will not believe you, and because mistakes are an essential part of education.译文:告诫成年子女不要犯错误,那是没有用的,一来他们不听你的,二来犯错误本身也是受教育的一个重要部分.翻译本句时,译者运用的主要翻译方法是______