I want to mention that 5 you're going to get problem-set five is posted today, and I'll write which ones you can already do so far, because you don't have class on Monday.
我要指出的是,今天会贴出来习题集,我会给出你们现在可以做的题目,因为周一没有课。
In Ruxton's Life in the Far West there's an Indian who gets red all over blushing because he got so many scalps and he runs like hell into the plains to glory over his deeds in hiding.
在《卢克斯顿的生活》里在美国中西部有一个印第安人,他因为得了太多头皮而全身涨得通红,拼命跑到草原里来藏起他的荣誉。
Fifty-two of you so far, so what we need are more people to get clickers, because some of these polls will be interesting to do.
目前为止有五十二个人,我需要更多的人能有个表决器,因为这样的投票会很有意思
So, what we have found out so far, I'm purposely going from x to y because I want you to know that the unknown variable can be called an x or can be called a y.
到目前为止,我们有这些结论,我特地把x换成y,因为我想让你们明白,未知变量既可以写成x,也可以写成y
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