大课间,激越的运动员进行曲旋律飘荡在学校操场上空,伴着师生们欢快的笑声,冬日的阳光似乎变得更加温暖。这时,教学大楼却是一片沉寂。一个孩子斜着身子站在二楼教室的门口,确切地说,是踮着脚,身子依着门框,额头布满了汗珠,咬着嘴唇,探头把眼神投向教室右侧的楼梯口。 During the big class, agitated athletes march melody over the school playground, accompanied by cheerful laughter of teachers and students, the winter sun seems to have become warmer. At this time, the teaching building is quiet. A child standing diagonally on the second floor of the classroom door, specifically, is tucked his feet, body according to the door frame, his forehead covered with sweat, bit his lip, the probe to look into the classroom on the right side of the stairs.