种族差异性 meaning in English

race diversity
racial diversity

In the past few years , montgomery county has become more ethnically diverse , with increases in the absolute number of the minority population and also in the variety of cultures and languages ; hence , more linguistically and culturally appropriate services are needed for the county s changing population
过去几年，蒙哥马利郡的种族差异性渐增弱势族裔人口正逐渐成长且文化及语言更趋多变性，因此该郡的族群变化需要更符合语言及文化的服务。