green lung
柯林斯词典
1. N an area of parkland within a town or city, considered in terms of the healthier environment it provides 绿肺绿化区; 指城市中的绿化地带
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1. N an area of parkland within a town or city, considered in terms of the healthier environment it provides 绿肺绿化区; 指城市中的绿化地带