But nevertheless, let's just go with this for a minute, and if we suppose that it took about a generation to enter the land so you see, I've done the math on the side here.
无论如何,我们还是要稍微讨论一下,假设,进入这块土地要一代人的努力,你看,我已经在这边做了算术。
That's one way to do it and I'll talk about it in other ways in just a minute.
这算一种办法,我一会儿还会讲别的
Why don't we go ahead for those of you who need a bit of a rest bit, let's take a two minute break and we'll resume with just some final thoughts on 50.
好吧我们先休息两分钟,然后再重新回到课上来,再讲一下对于这门课的一些最终的想法。
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