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we were only three p（） in the city ten years ago and the air pollutionwas very serious

分类: 作业答案 • 2021-12-28 14:33:17

问题描述：

we were only three p（） in the city ten years ago and the air pollutionwas very serious

答

parks
十年前,城市里只有三个公园,空气也很糟糕