一次户外活动时赵源小朋友跌倒了,哭了起来,我连忙过去扶起他,问怎么回事,他说:“就是它把我绊倒的!”几个孩子也闻声过来,一看鼓起的地砖,刘振亚小朋友上去就是几脚,想把它踩平,可一点作用都没有。“这下面是什么?地砖都鼓起来了!”几个孩子歪着头、侧着身蹲在地上查找着,赵源 When an outdoor activity Zhao Yuan fell, cried, I quickly fought him up and asked what happened, he said: “It tripped me!” Several children also heard over, a look at the drum From the floor tiles, Liu Zhenya children up is a few feet, want to step it flat, but no role. “What is below? Floor tiles are up!” Several children tilted their head, looking sideways squatting on the ground, Zhao Yuan