课文《凡卡》中引了凡卡给爷爷写的信 ,有一处连续引了三个自然段。其中第三个自然段开头用前引号 ,最后用后引号 ,第一、第二自然段都是只在开头用了前引号。这里为何只用前引号呢？我们都知道 ,用引号 ,是为了标明文章中引用的部分。但是 ,如果引用的内容包含两个甚至更多一? The text “Van card” in the card cited to Grandpa wrote a letter, there is a continuous cited three natural paragraphs. The third natural paragraph begins with a quotation mark before the last quotation mark. The first and second paragraphs are preceded by a quotation mark. Why use only the quotes before it? We all know that the use of quotation marks is to indicate the part of the article cited. But what if the reference contains two or more?