A2

剑桥词典

[ 不可数或单数名词：没有复数形式的名词 ]
in the UK, paper that is a standard size of 42 centimetres by 59.4 centimetres
（英国标准的）A2纸（42 x 59.4厘米）
a sheet of A2 一张A2纸
A2 paper A2纸
[ 可数名词：有复数形式的名词 ] plural A2s
a public exam taken in England and Wales by children aged 17 or 18. Students take AS level exams then A2s, usually a year later , which together make a full A level qualification .
A2考试（英格兰和威尔士17、18岁学生参加的公共考试。学生通常在参加AS等级考试一年后参加该考试。两种考试成绩构成完整的A等级资格。）
也见 A level
AS level 返回 A2