He's doing an A2 (level) in History.
他正在学习A2证书考试的历史科目。
More than 20 subjects are on offer at A2 level at our college.
本校提供20多门A2证书考试课程。
A 2：6周以上。
A2. Specific changes fall into six main areas.
具体变化主要体现在以下6个方面。
You can easily reach the hotel via the motorway A2.
从A2高速公路可以很方便地到达酒店。
The character of swing top cap A2 type is economical.
A2型（塑料盖）的特点在于经济性。
A2 - Please dial the extension, then press the pound key.
请按分机号，然后按下警号键。
We are prepared to make a2% reduction if your order is big enough.
如果你们订货数量大，我们准备减价百分之二。
We are prepared to make a2% reduction if your order is big enough.
如果你们订货数量大，我们准备减价百分之二。
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