Ok, now I wanna draw a picture that represents what's this, this is algebra, what the geometry, what's the picture that goes with it?

好的，现在我要画一张图代表什么是…这是代数，什么是几何，这张图代表了什么？

youdao

OK, see, if you are blanking and don't remember the signs, then you can just draw this picture and make sure that you get it right.

这么看来，如果记不住负号的话，可以画个图再确认一下。

youdao

OK, well.I'll try to explain this, this is a picture that was taken about 50 years ago.

好吧，我试着来解释一下，这张图片大概是50年前拍的。

youdao

OK, well.I'll try to explain this, This is a picture that was taken about 50 years ago.

好吧，我试着来解释一下，这张图片大概是50年前拍的。

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