Even on a staticmedium, rotational symmetry can convey action.
即使在一个静态的介质中，转动对称也可以表达出动态的意味。
2
The obvious difficulty is that trying to illustrate animations and dynamic effects by definition is not easy on a staticmedium.
显见的难点是作者不容易在静态媒体上图解动画和动态效果。
3
And our own online video service — adding video to the QVC website — has been significant for us. We knew we were good at making TV that sells but the web was largely a staticmedium.