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一、活动背景我县有一条护城河,河水遭到了严重的污染,变成了臭水沟。政府投资改造了它,把它恢复了原貌。我们组织幼儿先后实地观察了二次。
First, the background activities I have a moat in the county, the river has been a serious pollution, into a stinky ditch. It has been reinstated by the government and restored to its original condition. We organized toddlers have observed the field twice.