The distance between the actual developmental level as determined by independent problem solving and the level of potential development as determined through problem solving under adult guidance or in collaboration with more capable peers.
实际发展水平与潜在发展水平之间的距离,前者由独立解决问题决定,后者由在成人指导下或与更有能力的同伴合作解决问题决定。
The key is to keep improving, to keep working hard.
爱情是有魔力的,但如果放弃责任,这份魔力就会消失。
Technology can change the world, but values determine the direction of change.
Leadership is about making tough decisions today that will benefit generations tomorrow.