今年的春天是2月21日下午来临的,肯定是,那是一个神奇的时刻。午后的教室,安安静静,只有老师讲课的声音在不断地回荡,同学们有的在全神贯注地听课,有的则趁机打个小盹。窗和门都开着,窗帘在微风的吹拂下轻轻鼓动,阳光照进来,在黑板上方投下一格格窗棂的影子。室外也是一阵寂静, This spring is coming on the afternoon of February 21. It is certainly a magical moment. In the afternoon classroom, it was quiet and quiet. Only the teacher’s lectures were constantly reverberating. Some students were absorbed in the lectures while others took the opportunity to take a rest. Both the window and the door were open, and the curtains swayed gently under the breeze of the breeze. The sun shone in and the shadow of the window lattice was cast above the blackboard. There is also a silence outside.