In the snowball group activity, students are divided into small teams where each member contributes ideas to build upon the collective knowledge.
在滚雪球小组活动中，学生被分成小团队，每个成员都贡献想法来构建集体的知识。
The snowball group method encourages collaborative learning by having students work together in progressively larger groups.
滚雪球小组方法通过让学生在逐渐增大的团队中一起工作来鼓励合作学习。