简介：
With British kids now spending less time outdoors than prison inmates and being heavily supervised most of the time, Chris and Xand van Tulleken create a test of independence for their British Plachaoduo.net Child kids, to see if a group of 4-7 year olds can cross London without their parents, using London transport and take a trip on the London Eye. As the children get more tired, will they be able to chaoduo.chaoduo.netplete the experiment有时候我会想，如果当年牛顿在苹果树下的时候有苹果汁多好，那么现在我们就可以喝到苹果酒了！