外公是一位小学教师,现在退休在家。他有一本破破烂烂的书,已经保存了三十多年了,里面贴满了各种各样的小图纸片。我好奇地问外公:“这是什么书?”外公告诉我,这是他的“百科全书”,是他辅导学生出黑板报的秘密武器。“真有那么神奇?我才不信呢!”我装出一副嗤之以鼻的样子。外 Grandpa is a primary school teacher, now retired at home. He has a tattered book that has been around for more than three decades and is covered in a variety of small drawings. I am curious to ask my grandfather: “What is this book?” My grandfather told me that this is his “encyclopedia” and is his secret weapon to help students out the blackboard newspaper. “So amazing? I do not believe it!” I put on a snicker look. outer