利用方便携带式的雷达设备和电子显示版，义工们在住宅区特别是学校和儿童游戏场附近监测车速。
Using portable radar equipment and an electronic digital board, volunteers monitor speeds in neighbourhoods, particularly school and playground zones.
家长们要求学校在通往游戏场的入口处安上一个大门以防止孩子们往马路上跑。
Parents are demanding that the school put a gate at the entrance to the playground to protect the children from running into the road.
这种方法与儿童学前甄选没有多大差别。在学前甄选过程中，学校通过观察游戏场上的孩子们来辨别谁表现好。
The method isn't much different from a preschool screening, when a group of children are observed on the playground to see who plays nicely.
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