The alternative is to try to find some relevant difference between the watch case and the tower case.
还有一种方法是去找到,手表和搭积木塔这2个例子,之间的不同。
And one way we can get to that is by looking at two pieces of data.
一种可以得出答案的方法,就是观察2个数据。
If you look at x 2 this one right here in your handout. OK.
课堂材料的第二题2,这是关于做乘方的另外一种方法。
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