英语短语翻译 grounds keeping什么意思

Groundskeeping is the activity of tending an area of land for aesthetic or functional purposes; typically in an institutional setting.It includes mowing grass,trimming hedges,pulling weeds,planting flowers,etc.The U.S.Department of Labor estimated that more than 900,000 workers are employed in the landscape and groundskeeping services industry in the United States in 2006.Of these over 300,000 workers were groundskeepers for golf courses,schools,resorts,and public parks.
指的是一些公园,学校,旅游景点,高尔夫场一些维护设备良好,环境的魅力的行为活动,他们叫做groundskeepers,有点类似园丁,但是高级点,个人理解