下课时,两个女同学站在走廊上晒太阳。一个同学打开了手里的文具盒,盖上有面小方镜,正好对着阳光。阳光被镜面反射出来,形成一束光柱照到了墙上,呈现出一块白亮的光。我从家里偷偷地带了一面小圆镜到学校。这几 During get out of class, two female students stood in the corridor on the sun. A classmate opened the box in his hand, covered with a small square mirror, facing the sun. The sunlight was specularly reflected, forming a beam of light shining on the wall, showing a white light. I secretly brought a small mirror to my school from home. These few