A level

a-level的词性：
n.Chiefly British （名词）【多用于英国】

1. The later of two standardized tests in a secondary school subject, used as a qualification for entrance into a university.
高级考试：中学课程中两次标准考试的后一次，作为升入大学的资格考试

2. The educational background and skills required to pass this test.
高等程度：通过这种考试所需的教育程度和技能

a-level的词源：

3. A(dvanced) level
A(dvanced) level