《标点符号用法》规定:行文中直接引用的话,用引号标示。这条规定的第三个例子是这样的:c)现代画家徐悲鸿笔下的马,正如有的评论家所说的那样“神形兼备,充满生机”。这里的直接引用是不完 “Punctuation usage” provides: the text quoted directly in quotation marks. The third example of this rule is this: c) The horse by the modern painter Xu Beihong, as some commentators put it, “is full of deities and full of vitality.” The direct reference here is endless