I realize I've given you some difficult mathematics, but--it's not that difficult actually-- but I kind of went through it quickly.
我发现我给了你们一些比较难的数学公式,不过,并不是想象的那么难-,我很快就把它们讲完了。
So this is a little bit of math, a little formality, but is everyone okay with that?
这里只是稍微用了点数学符号,还有简单的公式,大家都听懂了吗
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