Another measure could be encouraging friendships between children in different school years to mimic the supervised mixed-age playgroups in hunter-gatherer communities.
另一种措施可以是鼓励不同年级的孩子建立友谊，以模仿采集狩猎社会中由成人监督的混龄游戏小组。
While hunter-gatherer children learn from observation and imitation in mixed-age playgroups, researchers said that western "instructive teaching", where pupils are asked to sit still, may contribute to conditions such as attention deficit hyperactivity disorder.
虽然采集狩猎社会的儿童在混龄游戏小组中通过观察和模仿学习，但研究人员表示，西方的"指导式教学"，要求学生保持安静坐定，可能会导致注意力缺陷多动障碍等状况。
Mixed-age playgroups: a better choice for lonely children
混合年龄游乐小组：孤独儿童的更好选择
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。