通过指定原始图像的左上角、右上角和左下角的目标点可旋转、反射和扭曲图像。
You can rotate, reflect, and skew an image by specifying destination points for the upper-left, upper-right, and lower-left corners of the original image.
图像本身可能在某种程度上被扭曲或放大了。
The image itself might be distorted or exaggerated in some way.
重力能使光线弯折，使巨大的星系团象望远镜一样，扭曲背景星系的图像，使之变得细长。
Gravity can bend light, allowing huge clusters of galaxies to act as telescopes, and distorting images of background galaxies into elongated strands.
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