An affine transformation is one in which parallellines remain parallel after the transformation.
仿射转换指的是平行线在转换后还保持平行。
2
Man and woman are two parallellines, and it is the nature of parallellines never to meet.
男人与女人是两条平行线。两条平行线是不会相交的。
3
I thought I could do was hold hands all the way down, but came to realize that a free hand in all but two parallellines, when all away, still parallel to the parallel.