It's the second year in a row that the proportion of top grades has fallen. Around 27% of exams were graded A* or A. That's almost the same as in 2019 which was the last year of exams before Covid.

获得高分学生的比例连续第二年下降。约 27% 的考试成绩被评为 A* 级或 A 级。这一比例与2019年的考试成绩几乎相同，2019年是新冠肺炎疫情前的最后一次考试。

Grades in 2020 and 2021 were unusually high as results were based on teachers' assessments. But the picture varies across the UK this year. The proportion of students receiving top grades in Wales and Northern Ireland is significantly higher than in England where the plan was to bring grades back in line with pre-pandemic levels more quickly.

2020年和2021年的 A-level 考试成绩异常优秀，因为这两年的成绩是基于教师的评估。但今年英国各地的情况各不相同。威尔士和北爱尔兰获得高分的学生比例远高于英格兰，英格兰的计划是更快地将成绩恢复到疫情前的水平。

词汇表

in a row 连续地
proportion 比例
A* “最优” 成绩
teachers' assessments 教师给学生作出的评估
the picture varies 情况各不相同
bring back 带回，恢复
in line with 与…一致