—— 请按键盘 空白键 开始游戏 ——

出自汉·桓宽《盐铁论·后刑》。锄去田里有害的杂草,禾苗就可以健康地生长;惩罚为非作歹的恶人,百姓就会感到喜悦。
"Cinematography is the art of making the invisible visible."
Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is most important.