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？
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。
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。
OK.. This liquid crystal TV has excellent picture performance. It can produce vivid images even when placed in a very bright room or near Windows.
好的。这种液晶电视具有卓越的画面-性能。即使被放在。很亮的房间里或靠近窗户的位置上，它仍能展现清晰的图像。
OK.. This liquid crystal TV has excellent picture performance. It can produce vivid images even when placed in a very bright room or near Windows.
好的。这种液晶电视具有卓越的画面-性能。即使被放在。很亮的房间里或靠近窗户的位置上，它仍能展现清晰的图像。
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