O level
noun [ C ] uk/ˈəʊ ˌlev.əl/ us/ˈoʊ ˌlev.əl/
（英国学校旧时15或16岁学生参加的）普通程度考试;普通程度证书
a public exam in a particular subject that was taken in the past in British schools by some children aged 15 or 16, or the qualification from this
She's got ten O levels. 她获得了10门科目的普通程度证书。
O levels were replaced by GCSEs in 1988. 1988年，普通程度证书为普通中等教育证书所取代。
Compare: A level