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“宁夏多种一棵树,北京少落一粒沙”。全民义务植树月期间,宁夏回族自治区林业局和北京市海淀区总工会以书法交流搭桥,共同携起手来为“生态北京”种树播绿,赢
“A variety of trees in Ningxia, Beijing less than a grain of sand ”. During the volunteer tree planting period, the Forestry Bureau of Ningxia Hui Autonomous Region and the Beijing Federation of Trade Unions held a calligraphy exchange to build a “green Beijing” tree planting and winning together