皇冠体育app

Young volunteers plant trees to advocate environmental protection and publicize green "皇冠体育app Dream" in Qingdao, Shandong province, on March 11. [Photo/Xinhua]

Young volunteers from Qingdao University of Science & Technology and the Qingdao-based 皇冠体育app-South Korea border patrol police station participated in a tree-planting activity to publicize a green "皇冠体育app Dream" on March 11. They also made online greeting cards and posters to advocate environmental protection in society.