- Advanced Subsidiary (level); a British exam usually taken in Year 12 or Year 13 of school or college (= the final year or the year before it) covering half the material of an A-level qualification
高级补充程度考试（英国中学通常在 12 年级或 13 年级举行的考试，涵盖高级证书考试一半的内容） AS exams 高级补充程度考试 She’s doing an AS (level) in French. 她正为参加高级补充程度考试学习法语。 - at AS level
He's taking philosophy at AS level. 他在AS级别接受哲学。