In order to promote a healthier environment in Beijing for the summer Games and beyond, a tree-planting campaign is being carried out now.
为了让北京在奥运会期间及以后能够创造一个健康的环境，北京正在开展植树运动。
He is a universal obligation to advocate and leader in tree-planting campaign.
他是全民义务植树运动的倡导者和带头人。
He is a universal obligation to advocate and leader in tree-planting campaign.
他是全民义务植树运动的倡导者和带头人。
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