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保护和扩大城市森林,已成为现代化都市建设中一个不可或缺的部分。近二十多年来,发达国家都在城市建设中把森林生态效益和社会效益摆在越来越重要的地位。
The protection and expansion of urban forests have become an integral part of modern urban construction. In the past two decades or so, the developed countries have placed the ecological and social benefits of forests in an increasingly important role in urban construction.