只要你需要导引对你就有用。
很明显在饼干人爱情故事里面,就有用到循环。
Certainly in the cookie love story was there a looping going on.
第一单元学得叉积、法向量这些,现在就有用了。
The first unit about cross-products,normal vectors and so on is actually useful now.
I still have to do this process and here is where the finger thing gets a little more useful 'cause I have longer lists.
我仍需要进行这一步骤,在这儿手指的方法就比较有用,因为,列表比之前的要长。
that are added onto our usual sale, you know, discounts, so those help, yeah.
在我们通常的减价基础上继续减,你知道,打折,这真的有用,就这样。
Do the following a bunch of times, but a finite number of times which might be useful.
按照下面重复若干次,有限次数就足够了,这很有用。
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