数学类也是令人兴奋的。
作为一个下午正要离开肖恩赶上了我的数学类。
One afternoon as I was leaving math class Sean caught up with me.
我在学习期间，我已经学习了经济，地理，数据和数学类。
During my learning period, I have taken classes of economy, geography, data and math.
大多数数学不好的人可以分为三类。
Most people who are doing poorly in a math class fall into three main categories.
美学方法是数学思维方法中的一类重要方法。
Aeathetics method is an important method of math thinking method.
第二类问题来自组合数学界。
The second class of problem comes from the world of combinatorics.
这一类数学难题只有高智力的人才有办法理解。
Only people with very high intelligence can understand this difficult kind of math.
这一类数学难题只有高智力的人才有办法理解。
Only people with very high intelligence can understand this difficult kind of math.
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