star-quad

例句：

1. 1. The star-quad is a shape that resemblesa star when viewed from above.
   星四边形是一种从上方看时形状像星星的图形。
2. 2. The star-quad isused in astronomy to describe theshape of the sky at different times ofthe day.
   星四边形在天文学中用来描述不同时间天空的形状。
3. 3. Thestar-quad is also used in computergraphics to represent the shape of a pointon a computer screen.
   星四边形也在计算机图形学中用来表示电脑屏幕上一个点的形态。