1·What is the area of this parallelogram?
这个平行四边形的面积是多少?
2·You see, it does look like a parallelogram.
你看,它的确看起来像一个平行四边形。
3·The parallelogram still has the same area, and it's still on the same plane.
这个平行四边形仍然有相同的面积,它仍然在同一个平面上。
4·Here is a better picture. I claim that what will be going through C is this shaded parallelogram to the left of C.
这里有幅更好的图。我说经过 C 的是 C 左边的这个阴影平行四边形。
5·OK, so now what the area of this parallelogram?
那么现在这个平行四边形的面积是多少?