noun 下载 🔗分享 普遍性，流行性。 The quality or condition of being prevalent; wide extension or spread. Examples : "The high prevalence of cell phone use in schools is a growing concern for teachers. " 手机在学校里的普遍使用越来越让老师们担忧。 statistics condition medicine society biology disease frequency quality 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 流行率，患病率 The total number of cases of a disease in a given statistical population at a given time, divided by the number of individuals in that population. Examples : "The prevalence of colds among students in the school this winter was high. " 今年冬天，这所学校的学生中感冒的患病率很高。 medicine disease statistics biology 与AI对话词汇游戏阅读练习
