合作角度1sthcangivestudentsteamspiritandteachthemhowtocooperatewithothersBecauseinthoseactivitiesstudentsusuallyneedtocooperatewithothersinordertogetgoodachievement可以赋予学生们团队精神并教会他们学会与人合作因为在这些活动中学生通常需要相互合作目的是得到提高2AdmittedlythislimithasmadeitpossibleforthepublictorealizetheimportanceofenvironmentalprotectionandenableweChinesepeopletocherishthebeautyofourcommunities可以承认这一限制已经使得公众认识到环境保护的重要性并且使得我们中国人去珍惜我们美丽的社区3Althoughmanypeopleclaimthatalongwiththerapideconomicdevelopmentthenumberofpeoplewhousebicyclei