求翻译：曾担任环保社团节能中心负责人，并组织了“环保贺卡”，“废品回收-爱心助学”等活动是什么意思？

Energy Conservation Center, has served as head of environmental groups, and organized a "green card", "recycling - love student" and other activities

Environmental protection associations served as head of the Center Section, and can be organized the "green card" and "waste recycling - love to learn" activities such as

Once held the post of the environmental protection mass organization to conserve energy the central person in charge, and organized “the environmental protection greeting card”, “the recycling of waste - compassion to assist students” and so on the activities

Energy-saving Center has held a number of environmental protection associations, and organized a "green card", "recycling-compassion" and other activities

Have served as the environment-friendly person in charge of energy-conserving centre of corporation, and organized " environment-friendly postcard ", " the waste recovery - love gives financial aid to students " Wait for the activity