Michael Clapham, a senior lecturer at Queen Margaret University in Edinburgh, said children needed a high degree of physical activity.
爱丁堡玛格·丽特皇后大学高级讲师迈克尔·克拉彭说，孩子们需要更高级别的体力活动。
Michael Clapham, a senior lecturer at Queen Margaret University in Edinburgh, said children needed a high degree of physical activity.
爱丁堡玛格·丽特皇后大学高级讲师迈克尔·克拉彭说，孩子们需要更高级别的体力活动。
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