美国游戏联盟，由医生，教育家，公园和娱乐场所工作人员组成，计划下月在克莱姆森大学举行一次会议探讨户外娱乐的价值。
The US Play Coalition, a group of doctors, educators and parks and recreation officials, plans a conference next month at Clemson University on the value of outdoor play.
美国游戏联盟，由医生，教育家，公园和娱乐场所工作人员组成，计划下月在克莱姆森大学举行一次会议探讨户外娱乐的价值。
The US Play Coalition, a group of doctors, educators and parks and recreation officials, plans a conference next month at Clemson University on the value of outdoor play.
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