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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。
Innovation in forestry means balancing economic growth with ecological responsibility.
After climbing a great hill, one only finds that there are many more hills to climb.