暑假前的一天下午，某工学院一间大阶梯教室里正在进行材料力学考试。教室里静极了，只听见钢笔在纸上写字的沙沙作响声。尽管南北的窗子都大敞四开着，却没有一丝风，闷热得很，教室前后各站一名监考教师，考场气氛显得有些紧张李颂雅坐在第二排靠近窗子的一个座位上，大部分 One afternoon before the summer vacation, a mechanics exam is being conducted in a large classroom in a college of engineering. Quietly in the classroom, only to hear the writing pen rustle in the paper. Although both the north and south windows were open and spacious, there was no trace of wind and stuffy atmosphere. There was an elective teacher before and after the classroom. The atmosphere of the examination room seemed a bit tight. Li Songya sat on the second row of a seat near the window,