当我告诉一群表现出无助行为的学生说，是缺乏努力导致了他们数学上的错误，他们就学会了在问题变得棘手时继续尝试。
When I told a group of school children who displayed helpless behavior that a lack of effort led to their mistakes in math, they learned to keep trying when the problems got tough.
本文对专业户笼养蛋鸡早期钙乏症所出现的蛋形变化、鸡群表现，发生特点过行了观察。
Changes in egg shape, flock performance, and characteristics of occurrence were observed in caged layers affected by early calcium deficiency.
一群人并不是自动形成一个团队。因此，对于提高团队表现来说，团队建设可能是必要的。
A group of individuals is not automatically a team. Therefore, team building may be necessary in order to improve the group's performance.
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